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1.
New Microbiol ; 42(3): 166-170, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31157398

RESUMO

Although far less common now than in the past, syphilis continues to pose a danger to public health and should not be overlooked. In this study, we evaluated the presence and characteristics of syphilis in a group of patients attending an STI Clinic in the North of Italy. A retrospective study was carried out, analysing the data from the 5609 subjects who attended the STI Clinic of St. Orsola-Malpighi Hospital (Bologna) for syphilis screening from January 2016 to December 2017. Globally, 692 patients (12.3%) were found positive for treponemal tests, with a significant difference between males and females (16.6% vs 4.1%; P<0.0001). Moreover, positive women were more likely foreign (63.3%), in contrast to men, who were more likely Italian (86.1%; P<0.0001). A total of 306 patients (44.2%), mainly males (47% vs 25%; P=0.0003), received a diagnosis of early syphilis. These cases peaked among patients 35-44 years (31%) and 25-34 years (26.8%). Overall, 32.9% of the women found positive for treponemal tests were pregnant. Among them, 84.6% were foreign (mainly from Eastern Europe) and 38.4% received a diagnosis of early syphilis. No cases of mother-to-child syphilis were found. The presence of an HIV-syphilis co-infection was found in 21.5% of patients with early syphilis, with a significant association with the male sex (P<0.009). In-depth knowledge of the characteristics of syphilis could help set up effective strategies for its control.


Assuntos
Sífilis , Coinfecção , Feminino , Infecções por HIV/complicações , Humanos , Itália/epidemiologia , Masculino , Gravidez , Estudos Retrospectivos , Fatores Sexuais , Sífilis/complicações , Sífilis/epidemiologia
2.
New Microbiol ; 41(3): 225-229, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29620787

RESUMO

Ureaplasma urealyticum (UU), Ureaplasma parvum (UP), Mycoplasma hominis (MH) and Mycoplasma genitalium (MG) are the most common Mollicutes of the female genital tract. Although many studies have addressed their possible role in the vaginal ecosystem, many aspects remain to be elucidated. The aim of this study was to evaluate the vaginal presence of ureaplasmas/mycoplasmas in women with different clinical conditions. By means of quantitative PCR assays, the prevalence and load of each Mollicute were assessed in different groups of pre-menopausal women: 'healthy' (n=29), women with bacterial vaginosis (BV) (n=21), patients with Chlamydia trachomatis (CT) infection (n=25) and subjects with vulvo-vaginal candidiasis (VVC) (n=23). Globally, UP was the most prevalent Mollicutes in the vagina (67.3%), followed by MH (14.3%), UU (9.2%) and MG (3.1%). The presence of UU and UP was almost never associated. MH showed a significantly higher prevalence and higher bacterial loads in BV-positive women (P<0.05), whereas patients with CT and VVC were characterized by a Mollicutes pattern similar to healthy women. Mollicutes can be frequently found in the vaginal ecosystem, even in asymptomatic 'healthy' women. Although its presence is not a strict requirement, MH displays a significant role in the pathogenesis of BV.


Assuntos
Candidíase Vulvovaginal/microbiologia , Tenericutes/isolamento & purificação , Vagina/microbiologia , Vaginose Bacteriana/microbiologia , Carga Bacteriana , Candidíase Vulvovaginal/diagnóstico , Feminino , Humanos , Vaginose Bacteriana/diagnóstico
3.
Sex Transm Dis ; 43(9): 584-6, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27513386

RESUMO

We report the first case of reactive arthritis associated with lymphogranuloma venereum (LGV) in an Italian human immunodeficiency virus-negative woman with urogenital and rectal Chlamydia trachomatis L2 serovar infection. The LGV-associated arthritis has to be considered even when classic symptoms of arthritis are missing and in case of asymptomatic or cryptic LGV localizations.


Assuntos
Artrite Reativa/microbiologia , Chlamydia trachomatis , Doenças Urogenitais Femininas/complicações , Linfogranuloma Venéreo/complicações , Doenças Retais/complicações , Feminino , Doenças Urogenitais Femininas/microbiologia , Humanos , Pessoa de Meia-Idade , Doenças Retais/microbiologia
4.
Dermatology ; 231(2): 171-6, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26139324

RESUMO

BACKGROUND: Syphilitic alopecia (SA) is mainly described in single case reports, and there are only a few epidemiological studies. OBJECTIVE: To investigate the clinical and dermoscopic features of SA in patients with secondary syphilis and to record its actual prevalence. METHODS: All patients with a diagnosis of secondary syphilis were clinically and trichoscopically evaluated in search of hair and scalp alterations. RESULTS: Five of 12 patients (41.6%) diagnosed with secondary syphilis had SA. The 'moth-eaten' pattern was detected in 4 patients (80% of cases): 1 had 'essential' SA, whereas 3 patients had 'symptomatic' SA. The 'diffuse' SA pattern was found in 1 patient. Trichoscopy of the 'moth-eaten' areas showed that alopecia is mainly due to a reduction in the number of terminal hairs. One patient with secondary syphilis showed trichodynia that regressed completely after antibiotic therapy. LIMITATIONS: The small number of patients included and the fact that none of our patients accepted to be biopsied in an affected area. CONCLUSION: Since SA appears to be present much more frequently than reported in the literature, when secondary syphilis is suspected, the patient should be examined for the presence of signs compatible with SA and the scalp should be examined by dermoscopy.


Assuntos
Alopecia/epidemiologia , Alopecia/patologia , Dermatoses Faciais/patologia , Dermatoses do Couro Cabeludo/patologia , Sífilis/complicações , Adulto , Alopecia/microbiologia , Dermoscopia , Dermatoses Faciais/microbiologia , Soropositividade para HIV/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Dermatoses do Couro Cabeludo/microbiologia
5.
J Emerg Med ; 48(3): e59-62, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25511465

RESUMO

BACKGROUND: Fitz-Hugh-Curtis syndrome is a rare extra-pelvic complication of genital infection involving the perihepatic capsule. Most cases have been described in women in association with pelvic inflammatory disease; in rare cases it has been reported in men. Because the main symptom is acute abdominal pain, and laboratory and imaging findings are frequently nonspecific, the differential diagnosis, considering other gastrointestinal or renal diseases, can be difficult in the early stage of the syndrome, leading to frequent misdiagnosis and mismanagement. CASE REPORT: We report a case of Fitz-Hugh-Curtis syndrome in a 26-year-old man who first presented to the emergency department with acute abdominal pain, vomiting, and fever. Diagnosis was possible on the basis of clinical signs of orchiepididymitis, abnormal ultrasound findings, and specialist consultation with the Sexually Transmitted Infection Clinic. An acute gonoccocal infection was revealed, which was complicated by a collection of free perihepatic fluid and a subcapsular hypoechoic focal lesion. Prompt antibiotic therapy was established, with complete resolution of the symptoms within a few days. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Awareness of the clinical presentation, imaging, and laboratory findings during the acute phase of Fitz-Hugh-Curtis syndrome could help emergency physicians to make an early diagnosis and to correctly manage such patients. Improved diagnostic skills could prevent chronic complications that are especially a risk in the case of delayed or minor genitourinary symptoms.


Assuntos
Infecções por Chlamydia/diagnóstico , Infecções por Chlamydia/microbiologia , Gonorreia/complicações , Hepatite/diagnóstico , Hepatite/microbiologia , Doença Inflamatória Pélvica/diagnóstico , Doença Inflamatória Pélvica/microbiologia , Peritonite/diagnóstico , Peritonite/microbiologia , Dor Abdominal/microbiologia , Doença Aguda , Adulto , Diagnóstico Diferencial , Febre/microbiologia , Humanos , Masculino , Vômito/microbiologia
6.
Antimicrob Agents Chemother ; 58(10): 5871-6, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25070110

RESUMO

The emergence of Neisseria gonorrhoeae isolates displaying resistance to antimicrobial agents is a major public health concern and a serious issue related to the occurrence of further untreatable gonorrhea infections. A retrospective analysis on 1,430 N. gonorrhoeae isolates, collected from 2003 through 2012, for antimicrobial susceptibility by Etest and molecular characterization by Neisseria gonorrhoeae multiantigen sequence typing (NG-MAST) was carried out in Italy. Azithromycin-resistant gonococci decreased from 14% in 2007 to 2.2% in 2012. Similarly, isolates with high MICs to cefixime (>0.125 mg/liter) decreased from 11% in 2008 to 3.3% in 2012. The ciprofloxacin resistance rate remains quite stable, following an increasing trend up to 64% in 2012. The percentage of penicillinase-producing N. gonorrhoeae (PPNG) significantly declined from 77% in 2003 to 7% in 2012. A total of 81 multidrug-resistant (MDR) gonococci were identified, showing 11 different antimicrobial resistance patterns. These were isolated from men who have sex with men (MSM) and from heterosexual patients. Two sequence types (STs), ST661 and ST1407, were the most common. Genogroup 1407, which included cefixime-, ciprofloxacin-, and azithromycin-resistant isolates, was found. In conclusion, a change in the antimicrobial resistance profiles among gonococci was identified in Italy together with a percentage of MDR isolates.


Assuntos
Antibacterianos/farmacologia , Neisseria gonorrhoeae/efeitos dos fármacos , Azitromicina/farmacologia , Cefixima/farmacologia , Ciprofloxacina/farmacologia , Humanos , Itália , Masculino , Neisseria gonorrhoeae/enzimologia , Penicilinase/metabolismo , Penicilinas/farmacologia , Estudos Retrospectivos , Tetraciclina/farmacologia
8.
New Microbiol ; 37(3): 399-402, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25180857

RESUMO

An Italian HIV-positive man having sex with men (MSM) attended the STIs Outpatients Clinic of Sant'Orsola Hospital in Bologna complaining of anal pain and constipation. According to patient's sexual history and repertoires, NAAT testing for Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (GC) was performed. Pharyngeal and anal swabs resulted positive for CT DNA detection and the following molecular genotyping identified a L2 serovar, coming to the final diagnosis of pharyngeal and rectal lymphogranuloma venereum (LGV) infection. After an antibiotic therapy with doxycycline 100 mg twice a day for 3 weeks, the patient completely recovered and the test of cure was negative for LGV infection.


Assuntos
Infecções Oportunistas Relacionadas com a AIDS/microbiologia , Infecções por Chlamydia/microbiologia , Linfogranuloma Venéreo/microbiologia , Doenças Faríngeas/microbiologia , Doenças Retais/microbiologia , Infecções Oportunistas Relacionadas com a AIDS/tratamento farmacológico , Adulto , Antibacterianos/administração & dosagem , Infecções por Chlamydia/tratamento farmacológico , Chlamydia trachomatis/isolamento & purificação , Chlamydia trachomatis/fisiologia , Doxiciclina/administração & dosagem , Homossexualidade Masculina , Humanos , Itália , Linfogranuloma Venéreo/tratamento farmacológico , Masculino , Doenças Faríngeas/tratamento farmacológico , Doenças Retais/tratamento farmacológico
9.
Dermatol Ther ; 26(2): 173-5, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23551375

RESUMO

Pruritic papular eruption (PPE) is a skin disease characterized by the eruption of itching papules on the extremities, face, and trunk; it is quite frequent in HIV-positive patients especially during the advanced immunosuppressive stage. PPE usually improves or heals when antiretroviral therapy restores the immune system function, but in some cases, it can take several months, and a symptomatic treatment for PPE is required. Systemic antihistamines, topical steroids, topical tacrolimus, itraconazole, pentoxyphilline, and ultraviolet B phototherapy have been proposed in cases of persisting PPE, but an elective treatment has not yet been found. We describe the case of a black patient affected by PPE, nonimproving with antiretroviral treatment, and resistant to topical steroids and oral antihistamines; a satisfactory and speedy result was achieved with narrow-band ultraviolet B phototherapy.


Assuntos
Infecções por HIV/complicações , Prurido/radioterapia , Dermatopatias Vesiculobolhosas/radioterapia , Terapia Ultravioleta/métodos , Adulto , Feminino , Humanos , Prurido/etiologia , Dermatopatias Vesiculobolhosas/etiologia , Dermatopatias Vesiculobolhosas/patologia , Resultado do Tratamento
10.
Dermatol Ther ; 25(1): 92-4, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22591503

RESUMO

Inflammatory linear verrucous epidermal nevus (ILVEN) is normally associated with the failure of topical and systemic treatments and with recurrences on interruption of therapy. Many physical approaches have been used, but they generally resulted in varying rates of recurrence and unacceptable scarring. We reported a case of ILVEN treated with a single session CO(2) laser treatment. In our experience, CO(2) laser was quick, easy, effective, and safe; we therefore believe that this approach should be considered as a first-line surgical option in the treatment of genital ILVEN, particularly in cases of mucosal involvement.


Assuntos
Lasers de Gás/uso terapêutico , Nevo Sebáceo de Jadassohn/cirurgia , Doenças da Vulva/cirurgia , Adulto , Feminino , Seguimentos , Humanos , Lasers de Gás/efeitos adversos , Nevo Sebáceo de Jadassohn/patologia , Resultado do Tratamento , Doenças da Vulva/patologia
11.
J Clin Lab Anal ; 26(2): 70-2, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-22467321

RESUMO

Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (GC) are the two most common sexually transmitted bacterial infections in developed countries. The purpose of the present study was evaluating a new system for CT/GC detection in urine specimens. A total of 700 urine specimens were obtained from patients attending the STD Outpatients Clinic of St. Orsola University Hospital, Bologna, Italy. Samples were tested by VERSANT® CT/GC DNA 1.0 Assay (Siemens Healthcare Diagnostics Inc., Tarrytown, NY), a multiplex Real-Time PCR assay, for simultaneous CT/GC detection. Results obtained by VERSANT assay were compared with those obtained by culturing genital secretions of the same patients. Moreover, urine specimens testing positive in VERSANT assay were retested by in-house PCR assays, used as confirmatory tests. VERSANT® CT/GC DNA 1.0 Assay performed with 99.4% and 99.2% of specificity for GC and CT detection, respectively, whereas sensitivity was 100% both for CT and GC. Culture methods were 100% specific, but far less sensitive than VERSANT assay. VERSANT® CT/GC DNA 1.0 Assay demonstrated to be a highly sensitive and specific technique for CT/GC detection.


Assuntos
Chlamydia trachomatis/genética , Chlamydia trachomatis/isolamento & purificação , DNA Bacteriano/genética , DNA Bacteriano/urina , Neisseria gonorrhoeae/genética , Neisseria gonorrhoeae/isolamento & purificação , Reação em Cadeia da Polimerase em Tempo Real/métodos , Adulto , Bioensaio , Infecções por Chlamydia/microbiologia , Infecções por Chlamydia/urina , Feminino , Genitália/microbiologia , Gonorreia/microbiologia , Gonorreia/urina , Humanos , Masculino
12.
New Microbiol ; 35(2): 215-9, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22707135

RESUMO

We studied the prevalence of Chlamydia trachomatis (CT) urogenital infection and the distribution of different genotypes in a non-selected STD population of 1625 patients, evaluating presence of coinfections with other sexually transmitted diseases. Each patient was bled to perform serological tests for syphilis and HIV, then urethral or endocervical swabs were obtained for the detection of CT and Neisseria gonorrhoeae by culture. DNA extracted from remnant positive swabs was amplified by omp1 Nested PCR and products were sequenced. Total prevalence of CT infection was 6.3% (103/1625), with strong differences between men and women (11.4% vs 3.9%, P<0.01). Clinical symptoms and coinfections were much more frequent in men than in women (P<0.01). The most common serovar was E (prevalence of 38.8%), followed by G (23.3%), F (13.5%) D/Da (11.6%) and J (4.8%). Serovars distribution was statistically different between men and women (P=0.042) and among patients with or without coinfection (P=0.035); patients infected by serovar D/Da showed the highest coinfection rate. This study can be considered a contribution in increasing knowledge on CT serovar distribution in Italy. Further studies are needed to better define molecular epidemiology of CT infection and to investigate its correlation with other STDs.


Assuntos
Infecções por Chlamydia/epidemiologia , Infecções por Chlamydia/microbiologia , Chlamydia trachomatis/isolamento & purificação , Coinfecção/epidemiologia , Infecções Sexualmente Transmissíveis/epidemiologia , Adulto , Instituições de Assistência Ambulatorial/estatística & dados numéricos , Infecções por Chlamydia/complicações , Chlamydia trachomatis/classificação , Chlamydia trachomatis/genética , Coinfecção/microbiologia , Coinfecção/virologia , Feminino , HIV/genética , HIV/isolamento & purificação , Humanos , Itália/epidemiologia , Masculino , Neisseria gonorrhoeae/genética , Neisseria gonorrhoeae/isolamento & purificação , Infecções Sexualmente Transmissíveis/complicações , Infecções Sexualmente Transmissíveis/microbiologia , Infecções Sexualmente Transmissíveis/virologia , Adulto Jovem
15.
Ital J Dermatol Venerol ; 157(3): 247-253, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34282866

RESUMO

BACKGROUND: Lichen sclerosus is an autoimmune dermatosis that in women typically involves vulvar area. This condition can strongly impact on the quality of life. To date, topical steroids are the most effective treatment, although adverse effects are possible, especially in long-term application. The aims of this study are: 1) to investigate the efficacy of fractional CO2 laser in reducing symptoms of vulvar lichen sclerosus (VLS) during maintenance therapy with topical steroids (application twice weekly or less); 2) to assess how long this reduction of symptoms persists during follow-up; 3) histological comparison before and after treatment. To our knowledge, this is the first prospective study evaluating this treatment in women with VLS. METHODS: Women with a diagnosis of VLS were prospectively enrolled and treated with fractional CO2 laser every 2 months, for a total of 3 sessions. Four questionnaires were periodically administered: the Dermatology Quality of Life Index (DLQI), the Female Sexual Functional Index (FSFI) and two specific questionnaires created to assess the severity of disease. RESULTS: Twenty-three adult women were enrolled. The fractional CO2 laser treatment significantly improved the scores of all scales from baseline to T4 questionnaires. CONCLUSIONS: Fractional CO2 laser proved to be effective on VLS symptoms and can be considered an alternative to corticosteroids during maintenance therapy. Larger studies with a control group and randomization are needed to safely generalize our findings.


Assuntos
Lasers de Gás , Líquen Escleroso e Atrófico , Líquen Escleroso Vulvar , Adulto , Feminino , Humanos , Lasers de Gás/uso terapêutico , Estudos Prospectivos , Qualidade de Vida , Líquen Escleroso Vulvar/complicações
16.
J Low Genit Tract Dis ; 15(4): 287-91, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21959572

RESUMO

OBJECTIVE: : The purpose of our study was to evaluate whether briefs made of Dermasilk fabric could be an adjuvant tool in the management of vulvar lichen sclerosus (LS). MATERIALS AND METHODS: : A controlled, randomized, double-blind study versus placebo was conducted, comparing Dermasilk versus standard cotton briefs in patients affected by LS during treatment with clobetasol propionate 0.05% ointment and vitamin E moisturizer. For each patient, an evaluation of objective genital signs and subjective symptoms typical of LS was recorded before the start of treatment, after 1 month, and after 6 months of the study. Statistical analysis was performed with SPSS 17.0 for Windows. RESULTS: : Forty-two women affected by LS were recruited and divided into those wearing Dermasilk or cotton briefs. Patients wearing Dermasilk briefs showed a better improvement in the clinical symptoms of burning sensation, skin irritation, and pain (Fisher test, p < .0001) compared with the cotton placebo group. The improvement in itching was also faster in the Dermasilk group (Fisher exact test, p < .05). Erythema also showed a better improvement in the Dermasilk group (Fisher test, p < 0.05). CONCLUSIONS: : Dermasilk fabric seems to be a useful adjunct to topical treatment in producing a better and more rapid control of symptoms in patients with LS.


Assuntos
Vestuário , Têxteis , Líquen Escleroso Vulvar/terapia , Adulto , Idoso , Anti-Inflamatórios/administração & dosagem , Clobetasol/administração & dosagem , Fibra de Algodão , Método Duplo-Cego , Feminino , Humanos , Pessoa de Meia-Idade , Placebos/administração & dosagem , Resultado do Tratamento , Vitamina E/administração & dosagem
17.
Antimicrob Agents Chemother ; 54(12): 5379-80, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20855744

RESUMO

A systematic evaluation of the susceptibility of all Chlamydia trachomatis urogenital serovars (D through K) to levofloxacin, erythromycin, doxycycline, clarithromycin, and azithromycin was performed. All C. trachomatis serovars had comparable susceptibilities with respect to the various antimicrobials tested, thus confirming the homogeneous data so far obtained regarding the susceptibility of C. trachomatis to antimicrobial agents.


Assuntos
Anti-Infecciosos/farmacologia , Chlamydia trachomatis/efeitos dos fármacos , Azitromicina/farmacologia , Chlamydia trachomatis/genética , Claritromicina/farmacologia , Doxiciclina/farmacologia , Eritromicina/farmacologia , Genótipo , Levofloxacino , Testes de Sensibilidade Microbiana , Ofloxacino/farmacologia
18.
PLoS One ; 15(1): e0227985, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31945133

RESUMO

Pharyngeal gonorrhoea is a common sexually transmitted infection among 'men having sex with other men' (MSM). Neisseria gonorrhoeae (NG) pharyngeal infections are usually characterized by the absence of symptoms, acting as an important reservoir for their further spread. To the best of our knowledge, no information about the composition of the pharyngeal microbiome during an ongoing NG infection is currently available. Therefore, in this study, we characterized the pharyngeal bacterial community profiles associated with NG infection in a well-selected cohort of HIV-negative MSM reporting unsafe oral intercourse. A total of 70 pharyngeal swabs were considered, comparing non-infected subjects (n = 45) versus patients with pharyngeal gonorrhoea (n = 25) whose microbiota composition was analyzed from pharyngeal swabs through sequencing of hypervariable V3-V4 regions of the 16S rRNA gene. The pharyngeal microbiome of all subjects was dominated by Prevotellaceae, Veillonellaceae and Streptococcaceae families. Patients with pharyngeal gonorrhoea harboured a pharyngeal microbiome quite similar to negative subjects. Nevertheless, when looking to less-represented bacterial species (relative abundance approximately 1% or less), an imbalance between aerobe and anaerobe microorganisms was observed in NG-infected patients. In particular, the pharyngeal microbiome of NG-positive individuals was richer in several anaerobes (e.g. Treponema, Parvimonas, Peptococcus, Catonella, Filifactor) and poorer in various aerobe genera (i.e. Pseudomonas, Escherichia), compared to non-infected controls. No significant differences were noticed in the distribution of commensal Neisseria species of the oropharynx between NG-positive and negative subjects. Metabolic variations induced by changes in the microbiome abundance were assessed by a functional prediction of the bacterial metabolic pathways: a more abundant involvement of D-glutamine and D-glutamate metabolism, carbohydrate metabolism, as well as a greater activation of the energy metabolism was observed in patients with pharyngeal gonorrhoea compared to non-infected individuals. Information about the bacterial composition of the pharyngeal microbiome in case of gonorrhoea could shed light on the pathogenesis of the infection and open new perspectives for the prevention and control of this condition.


Assuntos
Gonorreia/microbiologia , Microbiota/genética , Doenças Faríngeas/microbiologia , Faringe/microbiologia , RNA Ribossômico 16S , Estudos de Coortes , Humanos , Itália , Masculino , Minorias Sexuais e de Gênero , Sexo sem Proteção
19.
Sci Rep ; 9(1): 14095, 2019 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-31575935

RESUMO

We characterized the vaginal ecosystem during common infections of the female genital tract, as vulvovaginal candidiasis (VVC, n = 18) and Chlamydia trachomatis infection (CT, n = 20), recruiting healthy (HC, n = 21) and bacterial vaginosis-affected (BV, n = 20) women as references of eubiosis and dysbiosis. The profiles of the vaginal microbiome and metabolome were studied in 79 reproductive-aged women, by means of next generation sequencing and proton based-nuclear magnetic resonance spectroscopy. Lactobacillus genus was profoundly depleted in all the genital infections herein considered, and species-level analysis revealed that healthy vaginal microbiome was dominated by L. crispatus. In the shift from HC to CT, VVC, and BV, L. crispatus was progressively replaced by L. iners. CT infection and VVC, as well as BV condition, were mainly characterised by anaerobe genera, e.g. Gardnerella, Prevotella, Megasphaera, Roseburia and Atopobium. The changes in the bacterial communities occurring during the genital infections resulted in significant alterations in the vaginal metabolites composition, being the decrease of lactate a common marker of all the pathological conditions. In conclusion, according to the taxonomic and metabolomics analysis, we found that each of the four conditions is characterized by a peculiar vaginal microbiome/metabolome fingerprint.


Assuntos
Candidíase Vulvovaginal/microbiologia , Infecções por Chlamydia/microbiologia , Metaboloma , Microbiota , Vagina/microbiologia , Doenças Vaginais/microbiologia , Adulto , Candidíase Vulvovaginal/metabolismo , Estudos de Casos e Controles , Infecções por Chlamydia/metabolismo , Chlamydia trachomatis , Feminino , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Espectroscopia de Ressonância Magnética , Microbiota/genética , Vagina/metabolismo , Doenças Vaginais/metabolismo , Adulto Jovem
20.
Artigo em Inglês | MEDLINE | ID: mdl-31681634

RESUMO

Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) represent the most common agents of sexually transmitted rectal infections among men having sex with other men (MSM). In this study, we assessed the bacterial composition of the rectal microbiota associated with CT and/or NG infections in a cohort of men reporting unsafe rectal intercourse. A total of 125 rectal swabs were collected and four groups were compared: non-infected subjects (n = 53), patients with CT (n = 37), or NG rectal infection (n = 17) and patients with contemporary positivity for CT/NG (n = 18). CT and NG infections were detected by a real-time commercial test and the rectal microbiota composition was analyzed from rectal swabs through sequencing of the hypervariable V3-V4 regions of the 16S rRNA gene. The rectal microbiota of all subgroups was dominated by Prevotellaceae, Enterobacteriaceae, and Ruminococcaceae families. Irrespective of the analyzed subgroup, we found that the rectal environment of all the enrolled MSM was rich in Prevotella and Escherichia genera. Moreover, a shift in the bacterial composition between patients with sexually transmitted rectal infections and controls was noticed: infected patients were characterized by a depletion of Escherichia species, associated with an increase of anaerobic genera, including Peptoniphilus, Peptostreptococcus, and Parvimonas. Overall, the presence of rectal symptoms did not significantly modify the rectal microbiota profiles among the four groups of analyzed patients. We confirmed that HIV-positive patients are characterized by a lower bacterial richness than HIV-negative subjects. However, we found that the presence of HIV has a different impact on bacterial rectal communities compared to CT and NG infections, modifying the relative abundance of several genera, including Gardnerella, Lactobacillus, Corynebacterium, and Sutterella. Information about the rectal microbiota composition in CT and NG infections could shed light on the pathogenesis of these conditions and could contribute to the onset of new strategies for their control.


Assuntos
Infecções por Chlamydia/epidemiologia , Infecções por Chlamydia/microbiologia , Chlamydia trachomatis , Gonorreia/epidemiologia , Gonorreia/microbiologia , Homossexualidade Masculina , Microbiota , Neisseria gonorrhoeae , Reto/microbiologia , Infecções por Chlamydia/diagnóstico , Infecções por Chlamydia/transmissão , Chlamydia trachomatis/classificação , Chlamydia trachomatis/isolamento & purificação , Coinfecção , Código de Barras de DNA Taxonômico , Feminino , Gonorreia/diagnóstico , Gonorreia/transmissão , Humanos , Itália/epidemiologia , Masculino , Neisseria gonorrhoeae/classificação , Neisseria gonorrhoeae/isolamento & purificação
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