-
Current Opinion in Infectious Diseases Feb 2020The cause of bacterial vaginosis, the most common cause of vaginal discharge in women, remains controversial. We recently published an updated conceptual model on... (Review)
Review
PURPOSE OF REVIEW
The cause of bacterial vaginosis, the most common cause of vaginal discharge in women, remains controversial. We recently published an updated conceptual model on bacterial vaginosis pathogenesis, focusing on the roles of Gardnerella vaginalis and Prevotella bivia as early colonizers and Atopobium vaginae and other bacterial vaginosis-associated bacteria (BVAB) as secondary colonizers in this infection. In this article, we extend the description of our model to include a discussion on the role of host-vaginal microbiota interactions in bacterial vaginosis pathogenesis.
RECENT FINDINGS
Although G. vaginalis and P. bivia are highly abundant in women with bacterial vaginosis, neither induce a robust inflammatory response from vaginal epithelial cells. These early colonizers may be evading the immune system while establishing the bacterial vaginosis biofilm. Secondary colonizers, including A. vaginae, Sneathia spp., and potentially other BVAB are more potent stimulators of the host-immune response to bacterial vaginosis and likely contribute to its signs and symptoms as well as its adverse outcomes.
SUMMARY
Elucidating the cause of bacterial vaginosis has important implications for diagnosis and treatment. Our current bacterial vaginosis pathogenesis model provides a framework for key elements that should be considered when designing and testing novel bacterial vaginosis diagnostics and therapeutics.
Topics: Bacteria; Biofilms; Female; Host-Pathogen Interactions; Humans; Microbiota; Vagina; Vaginosis, Bacterial
PubMed: 31789672
DOI: 10.1097/QCO.0000000000000620 -
The Journal of Infectious Diseases Aug 2021Pelvic inflammatory disease (PID) is a clinical syndrome that has been associated with a wide range of potential causal pathogens. Three broad groups of organisms have...
Pelvic inflammatory disease (PID) is a clinical syndrome that has been associated with a wide range of potential causal pathogens. Three broad groups of organisms have been isolated from the genital tract of people with PID: sexually transmitted organisms such as Neisseria gonorrhoeae, Chlamydia trachomatis, Mycoplasma genitalium, and Trichomonas vaginalis; bacterial vaginosis (BV)-associated species and genera such as Atopobium vaginae, Sneathia, and Megasphaera; and genera and species usually associated with the gastrointestinal or respiratory tracts such as Bacteroides, Escherichia coli, Streptococcus, or Haemophilus influenza. Although PID is often considered to be synonymous with gonorrhea or chlamydia, these pathogens are found in only one quarter to one third of people with PID, suggesting that broader screening and diagnostic and treatment strategies need to be considered to reduce the burden of PID and its associated sequelae.
Topics: Chlamydia Infections; Chlamydia trachomatis; Female; Gonorrhea; Humans; Mycoplasma Infections; Mycoplasma genitalium; Neisseria gonorrhoeae; Pelvic Inflammatory Disease; Sexually Transmitted Diseases; Vagina
PubMed: 34396407
DOI: 10.1093/infdis/jiab067 -
Journal of Comparative Effectiveness... Aug 2022Despite significant controversy, vaginal laser therapy continues to be used for treatment of many gynecologic and pelvic conditions including vaginal atrophy, vaginal... (Review)
Review
Despite significant controversy, vaginal laser therapy continues to be used for treatment of many gynecologic and pelvic conditions including vaginal atrophy, vaginal dryness, dyspareunia, urinary incontinence and pelvic pain. This commentary reviews the controversy surrounding vaginal laser therapy and summarizes the important distinction between ablative and non-ablative vaginal lasers. While much research is still needed, the article describes what is important for healthcare professionals to know before making the decision to integrate this technology into their clinical practice.
Topics: Female; Humans; Laser Therapy; Lasers, Solid-State; Menopause; Vagina; Vaginal Diseases
PubMed: 35726603
DOI: 10.2217/cer-2021-0281 -
Ugeskrift For Laeger Dec 2023Haematocolpos, caused by imperforate hymen, is a rare condition where menstrual blood accumulates in the vagina. Adolescent girls presenting with amenorrhoea, cyclical...
Haematocolpos, caused by imperforate hymen, is a rare condition where menstrual blood accumulates in the vagina. Adolescent girls presenting with amenorrhoea, cyclical abdominal pain, and pelvis mass should be evaluated for this condition. Diagnosis requires a gynaecological examination. However, myths surrounding the hymen may impede proper medical care. Addressing these misconceptions is essential for promoting gynaecological care and ensuring timely evaluation and treatment. This case report emphasises the significance of effective communication in preventing misdiagnoses and care delays.
Topics: Female; Adolescent; Humans; Hymen; Gynecological Examination; Vagina; Hematocolpos; Abdominal Pain
PubMed: 38105732
DOI: No ID Found -
Frontiers in Immunology 2020Acute chorioamnionitis is characterized by neutrophilic infiltration and inflammation at the maternal fetal interface. It is a relatively common complication of... (Review)
Review
Acute chorioamnionitis is characterized by neutrophilic infiltration and inflammation at the maternal fetal interface. It is a relatively common complication of pregnancy and can have devastating consequences including preterm labor, maternal infections, fetal infection/inflammation, fetal lung, brain, and gastrointestinal tract injury. In this review, we will discuss current understanding of the pathogenesis, immunobiology, and mechanisms of this condition. Most commonly, acute chorioamnionitis is a result of ascending infection with relatively low-virulence organisms such as the Ureaplasma species. Furthermore, recent vaginal microbiome studies suggest that there is a link between vaginal dysbiosis, vaginal inflammation, and ascending infection. Although less common, microorganisms invading the maternal-fetal interface via hematogenous route (e.g., Zika virus, Cytomegalovirus, and Listeria) can cause placental villitis and severe fetal inflammation and injury. We will provide an overview of the knowledge gleaned from different animal models of acute chorioamnionitis and the role of different immune cells in different maternal-fetal compartments. Lastly, we will discuss how infectious agents can break the maternal tolerance of fetal allograft during pregnancy and highlight the novel future therapeutic approaches.
Topics: Animals; Chorioamnionitis; Dysbiosis; Female; Humans; Infections; Microbiota; Pregnancy; Pregnancy Complications, Infectious; Vagina
PubMed: 32373122
DOI: 10.3389/fimmu.2020.00649 -
Advanced Drug Delivery Reviews Nov 2021Recent estimates suggest that one in two sexually active individuals will acquire a sexually transmitted infection by age 25, an alarming statistic that amounts to over... (Review)
Review
Recent estimates suggest that one in two sexually active individuals will acquire a sexually transmitted infection by age 25, an alarming statistic that amounts to over 1 million new infections per day worldwide. Vaccination against STIs is highly desirable for alleviating this global burden of disease. Vaginal immunization is a promising strategy to combat transmission via the vaginal mucosa. The vagina is typically considered a poor inductive site for common correlates of adaptive immunity. However, emerging evidence suggests that immune tolerance may be overcome by precisely engineered vaccination schemes that orchestrate cell-mediated immunity and establish tissue resident memory immune cells. In this review, we will discuss the unique immunological milieu of the vaginal mucosa and our current understanding of correlates of pathogenesis and protection for several common STIs. We then present a summary of recent vaginal vaccine studies and explore the role that mucosal adjuvants and delivery systems play in enhancing protection according to requisite features of immunity. Finally, we offer perspectives on the challenges and future directions of vaginal vaccine delivery, discussing remaining physiological barriers and innovative vaccine formulations that may overcome them.
Topics: Adaptive Immunity; Female; Humans; Immune Tolerance; Vaccination; Vaccines; Vagina
PubMed: 34481031
DOI: 10.1016/j.addr.2021.113956 -
International Braz J Urol : Official... 2021Vaginoplasty is a commonly performed surgery for the transfeminine patient. In this review, we discuss how to achieve satisfactory surgical outcomes, and highlight... (Review)
Review
Vaginoplasty is a commonly performed surgery for the transfeminine patient. In this review, we discuss how to achieve satisfactory surgical outcomes, and highlight solutions to common complications involved with the surgery, including: wound separation, vaginal stenosis, hematoma, and rectovaginal fistula. Pre-operative evaluation and standard technique are outlined. Goal outcomes regarding aesthetics, creation of a neocavity, urethral management, labial appearance, vaginal packing and clitoral sizing are all described. Peritoneal vaginoplasty technique and visceral interposition technique are detailed as alternatives to the penile inversion technique in case they are needed to be used. Post-operative patient satisfaction, patient care plans, and solutions to common complications are reviewed.
Topics: Female; Gynecologic Surgical Procedures; Humans; Male; Penis; Sex Reassignment Surgery; Transsexualism; Vagina
PubMed: 32840336
DOI: 10.1590/S1677-5538.IBJU.2020.0338 -
Neurourology and Urodynamics Aug 2022Vaginal vault (VV) surgery should be a key part of surgery for a majority of pelvic organ prolapse (POP). The surgical anatomy of the VV, the upper most part of the... (Review)
Review
AIM
Vaginal vault (VV) surgery should be a key part of surgery for a majority of pelvic organ prolapse (POP). The surgical anatomy of the VV, the upper most part of the vagina, has not been recently subject to a dedicated examination and description.
METHODS
Cadaver studies were performed in (i) 10 unembalmed cadaveric pelves (observation); (ii) 2 unembalmed cadaveric pelves (dissection); (iii) 5 formalinized hemipelves (dissection). The structural outline and ligamentous supports of the VV were determined. Further confirmation of observations in post-hysterectomy patients were from a separate study on 300 consecutive POP repairs, 46% of whom had undergone prior hysterectomy.
RESULTS
The VV is equivalent to the Level I section of the vagina, measured posteriorly from the top of the posterior vaginal wall (apex or highest part of the vagina) to 2.5 cm below this point. It comprises the anterior fornix (through which cervix protrudes or is removed at hysterectomy), posterior fornix and two lateral fornices. Before hysterectomy, the posterior aspects of the cervix and upper vagina are supported by the uterosacral (USL) and cardinal ligaments (CL), the distal segments of which fuse together to form a cardinal-uterosacral ligament complex (cardinal utero-sacral complex), around 2-3 cm long. Post---hysterectomy, there is some residual USL support to the anterior fornix but the posterior fornix has no ligamentous support and is thus more vulnerable to prolapse.
CONCLUSION
Effective management of VV prolapse will need to be part of most POP repairs. Enhanced understanding of the surgical anatomy of the vaginal vault allows more effective planning of those POP surgeries.
Topics: Cadaver; Female; Gynecologic Surgical Procedures; Humans; Ligaments; Pelvic Organ Prolapse; Treatment Outcome; Uterus; Vagina
PubMed: 35620982
DOI: 10.1002/nau.24963 -
Neurourology and Urodynamics Aug 2022The mid-vagina (MV) represents Level II of the vagina. The surgical anatomy of the MV has not been recently subject to a comprehensive examination and description. MV... (Review)
Review
AIM
The mid-vagina (MV) represents Level II of the vagina. The surgical anatomy of the MV has not been recently subject to a comprehensive examination and description. MV surgery involving anterior and posterior colporrhaphy represents a key part of surgery for a majority of pelvic organ prolapse (POP).
METHODS
Literature review and surgical observations of many aspects of the MV were performed including MV length and width; MV shape; immediate relationships; histological analysis; anterior and posterior MV prolapse assessment and anterior MV surgical aspects. Unpublished pre- and postoperative quantitative data on 300 women undergoing posterior vaginal compartment repairs are presented.
RESULTS
The MV runs from the lower limit of the vaginal vault (VV) to the hymen. Its length is a mean of 5 cm. Its shape in section overall is a compressed rectangle. Its longitudinal shape is created by its anterior and posterior walls being inverse trapezoid in shape. Histology comprises three layers: (i) mucosa; (ii) muscularis; (iii) adventitia. MV prolapse staging uses pelvic organ prolapse quantification (POP-Q). Anterior MV prolapse can be quantitatively assessed using POP-Q while posterior MV prolapse can be assessed with POP-Q or PR-Q. Around 50% of both cystocele and rectocele are due to VV defects. POP will increase anterior MV width and length. Native tissue anterior colporrhaphy is the current conventional repair with mesh disadvantages outweighing advantages. Posteriorly, Level II (MV) defects are far smaller (mean 1.3 cm) than Level I (mean 6.0 cm) and Level III (mean 2.9 cm).
CONCLUSION
An understanding of the surgical anatomy of the MV can assist anterior and posterior colporrhaphy. In particular, if VV support is employed, the Level II component of a posterior repair should be relatively small.
Topics: Cystocele; Female; Humans; Pelvic Organ Prolapse; Postoperative Period; Surgical Mesh; Treatment Outcome; Vagina
PubMed: 35731184
DOI: 10.1002/nau.24994 -
International Journal of Molecular... Aug 2022Early evidence suggests a strong association of microorganisms with several human cancers, and great efforts have been made to understand the pathophysiology underlying... (Review)
Review
Early evidence suggests a strong association of microorganisms with several human cancers, and great efforts have been made to understand the pathophysiology underlying microbial carcinogenesis. Bacterial dysbiosis causes epithelial barrier failure, immune dysregulation and/or genotoxicity and, consequently, creates a tumor-permissive microenvironment. The majority of the bacteria in our body reside in the gastrointestinal tract, known as gut microbiota, which represents a complex and delicate ecosystem. Gut microbes can reach the pancreas, stomach and colon via the bloodstream. Oral bacterial translocations can also occur. In the stomach, pancreas and colon, low microbial diversity is associated with cancer, in particular with a bad prognosis. The urogenital tract also harbors unique microbiota, distinct from the gut microbiota, which might have a role in the urinary and female/male reproductive cancers' pathogenesis. In healthy women, the majority of bacteria reside in the vagina and cervix and unlike other mucosal sites, the vaginal microbiota exhibits low microbial diversity. Genital dysbiosis might have an active role in the development and/or progression of gynecological malignancies through mechanisms including modulation of oestrogen metabolism. Urinary dysbiosis may influence the pathogenesis of bladder cancer and prostate cancer in males. Modulation of the microbiome via pre, pro and postbiotics, fecal or vaginal microbiota transplantation and engineering bacteria might prove useful in improving cancer treatment response and quality of life. Elucidating the complex host-microbiome interactions will result in prevention and therapeutic efficacy interventions.
Topics: Bacteria; Dysbiosis; Female; Genital Neoplasms, Female; Humans; Male; Microbiota; Quality of Life; Tumor Microenvironment; Urogenital Neoplasms; Vagina
PubMed: 36077063
DOI: 10.3390/ijms23179664