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DI Pierro F, Bertuccioli A, Cazzaniga M, Zerbinati N, Guasti L. A clinical report highlighting some factors influencing successful vaginal colonization with probiotic Lactobacillus crispatus. Minerva Med 2023; 114:883-887. [PMID: 37526510 DOI: 10.23736/s0026-4806.23.08773-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Affiliation(s)
- Francesco DI Pierro
- Scientific Department, Velleja Research, Milan, Italy -
- Department of Medicine and Surgery, University of Insubria, Varese, Italy -
| | | | | | - Nicola Zerbinati
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Luigina Guasti
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
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2
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Di Pierro F, Sinatra F, Cester M, Da Ros L, Pistolato M, Da Parè V, Fabbro L, Maccari D, Dotto S, Sossai S, Fabozzi G, Bertuccioli A, Cazzaniga M, Recchia M, Zerbinati N, Guasti L, Baffoni A. Effect of L. crispatus M247 Administration on Pregnancy Outcomes in Women Undergoing IVF: A Controlled, Retrospective, Observational, and Open-Label Study. Microorganisms 2023; 11:2796. [PMID: 38004807 PMCID: PMC10673025 DOI: 10.3390/microorganisms11112796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/11/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
The aim of our study was to retrospectively evaluate whether the oral administration of L. crispatus (M247) could increase pregnancy and live birth rates in women undergoing assisted reproductive technology procedures. Enrolled women (N = 160) were divided into two groups: treated (N = 80) or untreated (N = 80) with the probiotic strain. The odds ratio (OR) for a treated woman to have a clinical pregnancy (CP) was 1.56. In women aged 30-40 years, M247 increased the probability of a CP in correlation with the progressive rise in BMI, reaching 47% (35% in controls) with a BMI of 35 (OR: 2.00). The CAID statistics showed that in a woman of the blastocyst subgroup, below 43 years, with a BMI over 18.6, treatment with M247 increased the chance of a CP from 28.4% to 44.5% (OR: 2.08; p < 0.05). Considering live births, the rate of the probiotic group was 12.5% versus 7.5% (OR: 1.76). Considering only the blastocyst subgroup, the treatment increased the number of live births by 200% (OR: 3.64; p = 0.05). As confirmed also by statistical indices NNT, NNH, and LHH, the use of M247 demonstrated a risk-benefit ratio to the full advantage of the benefits.
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Affiliation(s)
- Francesco Di Pierro
- Scientific & Research Department, Velleja Research, 20125 Milan, Italy
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy (L.G.)
| | | | | | - Lucia Da Ros
- U.O.S.D. PMA Conegliano Hospital, 31100 Treviso, Italy
| | | | - Vania Da Parè
- U.O.S.D. PMA Conegliano Hospital, 31100 Treviso, Italy
| | - Laura Fabbro
- U.O.S.D. PMA Conegliano Hospital, 31100 Treviso, Italy
| | | | - Silvia Dotto
- U.O.S.D. PMA Conegliano Hospital, 31100 Treviso, Italy
| | - Sara Sossai
- U.O.S.D. PMA Conegliano Hospital, 31100 Treviso, Italy
| | - Gemma Fabozzi
- IVIRMA Global Research Alliance, GENERA, Clinica Valle Giulia, 00197 Rome, Italy
- IVIRMA Global Research Alliance, B-WOMAN, 00197 Rome, Italy
- Department of Biomedicine and Prevention, University of Rome, Tor Vergata, 00185 Rome, Italy
| | - Alexander Bertuccioli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino, Italy;
| | | | - Martino Recchia
- Medistat, Unit of Clinical Epidemiology and Biostatistics, Mario Negri Institute Alumni Association (MNIAA), 20156 Milan, Italy
| | - Nicola Zerbinati
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy (L.G.)
| | - Luigina Guasti
- Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy (L.G.)
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Colletti A, Pellizzato M, Cicero AF. The Possible Role of Probiotic Supplementation in Inflammation: A Narrative Review. Microorganisms 2023; 11:2160. [PMID: 37764004 PMCID: PMC10535592 DOI: 10.3390/microorganisms11092160] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/01/2023] [Accepted: 08/17/2023] [Indexed: 09/29/2023] Open
Abstract
The fine balance between symbiotic and potentially opportunistic and/or pathogenic microorganisms can undergo quantitative alterations, which, when associated with low intestinal biodiversity, could be responsible for the development of gut inflammation and the so-called "intestinal dysbiosis". This condition is characterized by the disbalance of a fine synergistic mechanism involving the mucosal barrier, the intestinal neuroendocrine system, and the immune system that results in an acute inflammatory response induced by different causes, including viral or bacterial infections of the digestive tract. More frequently, however, dysbiosis is induced slowly and subtly by subliminal causal factors, resulting in a chronic condition related to different diseases affecting the digestive tract and other organs and apparatuses. Studies on animal models, together with studies on humans, highlight the significant role of the gut microbiota and microbiome in the occurrence of inflammatory conditions such as metabolic syndrome and cardiovascular diseases (CVDs); neurodegenerative, urologic, skin, liver, and kidney pathologies; and premature aging. The blood translocation of bacterial fragments has been found to be one of the processes linked to gut dysbiosis and responsible for the possible occurrence of "metabolic endotoxemia" and systemic inflammation, associated with an increased risk of oxidative stress and related diseases. In this context, supplementation with different probiotic strains has been shown to restore gut eubiosis, especially if administered in long-term treatments. The aim of this review is to describe the anti-inflammatory effects of specific probiotic strains observed in clinical trials and the respective indications, highlighting the differences in efficacy depending on strain, formulation, time and duration of treatment, and dosage used.
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Affiliation(s)
- Alessandro Colletti
- Department of Science and Drug Technology, University of Turin, 10124 Turin, Italy
- Italian Society of Nutraceutical Formulators (SIFNut), 31033 Treviso, Italy
| | - Marzia Pellizzato
- Italian Society of Nutraceutical Formulators (SIFNut), 31033 Treviso, Italy
| | - Arrigo Francesco Cicero
- Medical and Surgical Sciences Department, University of Bologna, 40126 Bologna, Italy;
- IRCCS AOUBO, 40138 Bologna, Italy
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Liang D, Wu F, Zhou D, Tan B, Chen T. Commercial probiotic products in public health: current status and potential limitations. Crit Rev Food Sci Nutr 2023; 64:6455-6476. [PMID: 36688290 DOI: 10.1080/10408398.2023.2169858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Consumption of commercial probiotics for health improvement and disease treatment has increased in popularity among the public in recent years. The local shops and pharmacies are brimming with various probiotic products such as probiotic food, dietary supplement and pharmaceuticals that herald a range of health benefits, from nutraceutical benefits to pharmaceutical effects. However, although the probiotic market is expanding rapidly, there is increasing evidence challenging it. Emerging insights from microbiome research and public health demonstrate several potential limitations of the natural properties, regulatory frameworks, and market consequences of commercial probiotics. In this review, we highlight the potential safety and performance issues of the natural properties of commercial probiotics, from the genetic level to trait characteristics and probiotic properties and further to the probiotic-host interaction. Besides, the diverse regulatory frameworks and confusing probiotic guidelines worldwide have led to product consequences such as pathogenic contamination, overstated claims, inaccurate labeling and counterfeit trademarks for probiotic products. Here, we propose a plethora of available methods and strategies related to strain selection and modification, safety and efficacy assessment, and some recommendations for regulatory agencies to address these limitations to guarantee sustainability and progress in the probiotic industry and improve long-term public health and development.
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Affiliation(s)
- Dingfa Liang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
- Queen Mary School, Nanchang University, Nanchang, China
| | - Fei Wu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
| | - Dexi Zhou
- National Engineering Research Centre for Bioengineering Drugs and Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, China
| | - Buzhen Tan
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
| | - Tingtao Chen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
- National Engineering Research Centre for Bioengineering Drugs and Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, China
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Cazzaniga M, Cardinali M, Di Pierro F, Bertuccioli A. Ovarian Microbiota, Ovarian Cancer and the Underestimated Role of HPV. Int J Mol Sci 2022; 23:ijms232416019. [PMID: 36555661 PMCID: PMC9784802 DOI: 10.3390/ijms232416019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/11/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
In recent years, many studies have highlighted the possible close correlation between human diseases and definite patterns of microbial organisms colonizing various organs. Even at sites traditionally considered sterile, such as the upper female reproductive tract (FRT), it is now well-recognized as hosting a low biomass of different bacterial phyla. Additionally, the data from recent studies highlight a possible link between lower and upper FRT dysbiosis with a potential predisposition to cervical and ovarian cancer. Acinetobacter, chlamydia, increased mycoplasma, and lactobacillary scarcity in the upper FRT have all been linked to a predisposition to ovarian cancer. Additionally, a high-diversity vaginal community state type (CST) is linked to the presence and persistence of high-risk human papillomavirus (HPV), resulting in decreased cellular p53 activity and a reduction in the immune activity of T lymphocytes, resulting in cervical and ovarian cancer predisposition. While these findings are still far from being clarified in all aspects, in patients with multiple risk factors for ovarian cancer, a Lactobacillus crispatus treatment with a product with a proven ability to restore a favorable CST should be considered as an add-on therapy.
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Affiliation(s)
| | - Marco Cardinali
- Department of Internal Medicine, Infermi Hospital, AUSL Romagna, 47921 Rimini, Italy
| | - Francesco Di Pierro
- Scientific & Research Department, Velleja Research, 20125 Milano, Italy
- Digestive Endoscopy Unit and Gastroenterology, Fondazione Poliambulanza, 25124 Brescia, Italy
| | - Alexander Bertuccioli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61122 Urbino, Italy
- Correspondence:
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Aziz G, Zaidi A, Tariq M. Compositional Quality and Possible Gastrointestinal Performance of Marketed Probiotic Supplements. Probiotics Antimicrob Proteins 2022; 14:288-312. [PMID: 35199309 DOI: 10.1007/s12602-022-09931-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/11/2022] [Indexed: 12/15/2022]
Abstract
The local pharmacies and shops are brimming with various probiotic products that herald a range of health benefits. The poor quality of probiotic products in both dosage and species is symptomatic of this multi-billion-dollar market making it difficult for consumers to single out reliable ones. This study aims to fill the potential gap in the labeling accuracy of probiotic products intended for human consumption. We describe a combinatorial approach using classical culture-dependent technique to quantify and molecular techniques (16 s rRNA gene sequencing, multilocus sequence, and ribotyping) for strain recognition of the microbial contents. The full gamut of probiotic characteristics including acid, bile and lysozyme tolerances, adhesiveness, anti-pathogenicity, and degree of safeness were performed. Their capacity to endure gastro-intestinal (GIT) stresses and select drugs was assessed in vitro. Our results forced us to declare that the local probiotic market is essentially unregulated. Almost none of the probiotic products tested met the label claim. Some (11%) have no viable cells, and a quarter (27%) showing significant inter-batch variation. A lower microbial count was typical with undesirables constituting a quarter of the total (~ 27%). Half of the products contained antibiotic-resistant strains; the unregulated use of these probiotics carries the risk of spreading antibiotic resistance to gut pathobionts. Poor tolerance to gut conditions and mediocre functionalism make the case worse. The current regulatory systems do not take this discrepancy into account. We recommend an evidence-based regular market surveillance of marketed probiotics to ensure the authenticity of the claims and product effectiveness.
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Affiliation(s)
- Ghazal Aziz
- National Probiotic Laboratory, National Institute for Biotechnology and Genetic Engineering College (NIBGE-C)-PIEAS, Faisalabad, 38000, Punjab, Pakistan
- Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad, 45650, ICT, Pakistan
| | - Arsalan Zaidi
- National Probiotic Laboratory, National Institute for Biotechnology and Genetic Engineering College (NIBGE-C)-PIEAS, Faisalabad, 38000, Punjab, Pakistan.
- Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad, 45650, ICT, Pakistan.
| | - Muhammad Tariq
- National Probiotic Laboratory, National Institute for Biotechnology and Genetic Engineering College (NIBGE-C)-PIEAS, Faisalabad, 38000, Punjab, Pakistan
- Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad, 45650, ICT, Pakistan
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Mazzantini D, Calvigioni M, Celandroni F, Lupetti A, Ghelardi E. Spotlight on the Compositional Quality of Probiotic Formulations Marketed Worldwide. Front Microbiol 2021; 12:693973. [PMID: 34354690 PMCID: PMC8329331 DOI: 10.3389/fmicb.2021.693973] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/29/2021] [Indexed: 11/13/2022] Open
Abstract
On the worldwide market, a great number of probiotic formulations are available to consumers as drugs, dietary supplements, and functional foods. For exerting their beneficial effects on host health, these preparations should contain a sufficient amount of the indicated living microbes and be pathogen-free to be safe. Therefore, the contained microbial species and their amount until product expiry are required to be accurately reported on the labels. While commercial formulations licensed as drugs are subjected to rigorous quality controls, less stringent regulations are generally applied to preparations categorized as dietary supplements and functional foods. Many reports indicated that the content of several probiotic formulations does not always correspond to the label claims in terms of microbial identification, number of living organisms, and purity, highlighting the requirement for more stringent quality controls by manufacturers. The main focus of this review is to provide an in-depth overview of the microbiological quality of probiotic formulations commercialized worldwide. Many incongruences in the compositional quality of some probiotic formulations available on the worldwide market were highlighted. Even if manufacturers carry at least some of the responsibility for these inconsistencies, studies that analyze probiotic products should be conducted following recommended and up-to-date methodologies.
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Affiliation(s)
- Diletta Mazzantini
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Marco Calvigioni
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Francesco Celandroni
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Antonella Lupetti
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Emilia Ghelardi
- Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy.,Research Center Nutraceuticals and Food for Health-Nutrafood, University of Pisa, Pisa, Italy
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Mohar Lorbeg P, Golob M, Kramer M, Treven P, Bogovič Matijašić B. Evaluation of Dietary Supplements Containing Viable Bacteria by Cultivation/MALDI-TOF Mass Spectrometry and PCR Identification. Front Microbiol 2021; 12:700138. [PMID: 34349743 PMCID: PMC8326757 DOI: 10.3389/fmicb.2021.700138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 06/10/2021] [Indexed: 11/30/2022] Open
Abstract
The insufficient quality of products containing beneficial live bacteria in terms of content and viability of labelled microorganisms is an often-reported problem. The aim of this work was to evaluate the quality of dietary supplements containing viable bacteria available in Slovenian pharmacies using plate counting, matrix-assisted laser desorption ionisation time-of-flight mass spectrometry (MALDI-TOF MS) and species- or subspecies-specific PCR with DNA isolated from consortia of viable bacteria, from individual isolates, or directly from the products. Twelve percent of the products (3 of 26) contained insufficient numbers of viable bacteria. Eighty-three of the labelled species (111 in total) were confirmed by PCR with DNA from the product; 74% of these were confirmed by PCR with DNA from viable consortium, and 65% of these were confirmed by MALDI-TOF MS analysis of colonies. Certain species in multi-strain products were confirmed by PCR with DNA from viable consortia but not by MALDI-TOF MS, suggesting that the number of isolates examined (three per labelled strain) was too low. With the exception of Lacticaseibacillus casei and closely related species (Lacticaseibacillus rhamnosus and Lacticaseibacillus zeae), PCR and MALDI-TOF identification results agreed for 99% of the isolates examined, although several MALDI-TOF results had lower score values (1.700-1.999), indicating that the species identification was not reliable. The species L. zeae, which appeared in 20 matches of the Biotyper analysis, was identified as L. rhamnosus by PCR. The MALDI-TOF MS analysis was also unsuccessful in detecting Lactobacillus acidophilus La-5 and Bacillus coagulans due to missing peaks and unreliable identification, respectively. Mislabelling was detected by both methods for two putative L. casei strains that turned out to belong to the species Lacticaseibacillus paracasei. PCR remains more successful in subspecies-level identification as long as the database of MALDI-TOF MS spectra is not expanded by building in-house databases. The lack of positive PCR results with viable consortia or colonies, but positive PCR results with DNA isolated directly from the products observed in 10% (11/112) of the labelled strains, suggests the presence of non-culturable bacteria in the products. MALDI-TOF MS is a faster and simpler alternative to PCR identification, provided that a sufficient number of colonies are examined. Generation of in-house library may further improve the identification accuracy at the species and sub-species level.
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Affiliation(s)
- Petra Mohar Lorbeg
- Department of Animal Science, Biotechnical Faculty, Institute of Dairy Science and Probiotics, University of Ljubljana, Ljubljana, Slovenia
| | - Majda Golob
- Veterinary Faculty, Institute of Microbiology and Parasitology, University of Ljubljana, Ljubljana, Slovenia
| | - Mateja Kramer
- Global Drug Development, Technical Research & Development, Biologics and Cell & Gene Therapy, Novartis, Global Project Management Office, Lek Pharmaceuticals d.d., Mengeš, Slovenia
| | - Primož Treven
- Department of Animal Science, Biotechnical Faculty, Institute of Dairy Science and Probiotics, University of Ljubljana, Ljubljana, Slovenia
| | - Bojana Bogovič Matijašić
- Department of Animal Science, Biotechnical Faculty, Institute of Dairy Science and Probiotics, University of Ljubljana, Ljubljana, Slovenia
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Di Pierro F, Criscuolo AA, Dei Giudici A, Senatori R, Sesti F, Ciotti M, Piccione E. Oral administration of Lactobacillus crispatus M247 to papillomavirus-infected women: results of a preliminary, uncontrolled, open trial. Minerva Obstet Gynecol 2021; 73:621-631. [PMID: 33876901 DOI: 10.23736/s2724-606x.21.04752-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Vaginal microbiotas can be clustered into five different possible categories (CST I to V), according to their bacterial dominance. In CST I, the dominance of Lactobacillus crispatus seems to correlate with better vaginal health and with a lower incidence of sine causa infertility, preterm delivery, bacterial vaginosis, and viral (including human papillomavirus; HPV) infection. According to the same method of classifying the vaginal microbiome, CST IV (non-Lactobacillusdominated) demonstrates a higher incidence of disorders. METHODS In an open, non-controlled study, we enrolled 35 HPV-positive women who mostly (N=24) demonstrated CST IV status, with the other individuals categorized as having either CST III (N=10) or CST II (N=1) microbiotas. RESULTS After 90 days of oral treatment with a probiotic (L. crispatus M247) we observed a reduction of approximately 70% in HPV positivity and a significant change in CST status with 94% of women now classified as CST I. CONCLUSIONS Despite the limitations of our study, it is the first demonstration that it is possible to intervene orally with an L. crispatus probiotic to bring about a change in CST status and, in parallel, increased HPV clearance.
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Affiliation(s)
- Francesco Di Pierro
- Scientific Department, Velleja Research, Milan, Italy - .,Digestive Endoscopy Unit and Gastroenterology, Fondazione Poliambulanza, Brescia, Italy
| | - Anna A. Criscuolo
- Section of Gynecology, Academic Department of Biomedicine and Prevention and Clinical Department of Surgery, Tor Vergata University Hospital, Rome, Italy
| | - Anna Dei Giudici
- Section of Gynecology, Academic Department of Biomedicine and Prevention and Clinical Department of Surgery, Tor Vergata University Hospital, Rome, Italy
| | - Roberto Senatori
- SICPCV (Italian Society of Colposcopy and Cervico-Vaginal Pathology) board, Rome, Italy
| | - Francesco Sesti
- Section of Gynecology, Academic Department of Biomedicine and Prevention and Clinical Department of Surgery, Tor Vergata University Hospital, Rome, Italy
| | - Marco Ciotti
- Section of Gynecology, Academic Department of Biomedicine and Prevention and Clinical Department of Surgery, Tor Vergata University Hospital, Rome, Italy
| | - Emilio Piccione
- Section of Gynecology, Academic Department of Biomedicine and Prevention and Clinical Department of Surgery, Tor Vergata University Hospital, Rome, Italy
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López-Moreno A, Aguilera M. Probiotics Dietary Supplementation for Modulating Endocrine and Fertility Microbiota Dysbiosis. Nutrients 2020; 12:E757. [PMID: 32182980 PMCID: PMC7146451 DOI: 10.3390/nu12030757] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/06/2020] [Accepted: 03/09/2020] [Indexed: 12/15/2022] Open
Abstract
Human microbiota seems to play a key role in endocrine and reproductive systems. Fortunately, microbiota reproductive dysbiosis start to be treated by probiotics using typical species from genus Lactobacillus. This work presents the compiled and analysed results from the most up-to-date information from clinical trials regarding microbiota, fertility, probiotics and oral route administration, reviewing open access scientific documents. These studies analyse the clinical impact of probiotics administered on several endocrine disorders' manifestations in women: mastitis; vaginal dysbiosis; pregnancy complication disorders; and polycystic ovary syndrome. In all cases, the clinical modulation achieved by probiotics was evaluated positively through the improvement of specific disease outcomes with the exception of the pregnancy disorders studies, where the sample sizes results were statistically insufficient. High amounts of studies were discarded because no data were provided on specific probiotic strains, doses, impact on the individual autochthon microbiota, or data regarding specific hormonal values modifications and endocrine regulation effects. However, most of the selected studies with probiotics contained no protocolised administration. Therefore, we consider that intervention studies with probiotics might allocate the focus, not only in obtaining a final outcome, but in how to personalise the administration according to the disorder to be palliated.
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Affiliation(s)
- Ana López-Moreno
- Department of Microbiology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain
- Institute of Nutrition and Food Technology “José Mataix”, Center of Biomedical Research, University of Granada, 18016 Armilla, Granada, Spain
| | - Margarita Aguilera
- Department of Microbiology, Faculty of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain
- Institute of Nutrition and Food Technology “José Mataix”, Center of Biomedical Research, University of Granada, 18016 Armilla, Granada, Spain
- IBS: Instituto de Investigación Biosanitaria ibs., 18012 Granada, Spain
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