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Frontiers in Cellular and Infection... 2023
Topics: Female; Humans; Vulvodynia; Chronic Pain; Inflammation; Immunity, Innate
PubMed: 38145051
DOI: 10.3389/fcimb.2023.1338659 -
Pathogens (Basel, Switzerland) Nov 2023Human papillomavirus (HPV) is implicated in over 90% of cervical cancer cases, with factors like regional variability, HPV genotype, the population studied, HPV... (Review)
Review
Human papillomavirus (HPV) is implicated in over 90% of cervical cancer cases, with factors like regional variability, HPV genotype, the population studied, HPV vaccination status, and anatomical sample collection location influencing the prevalence and pathology of HPV-induced cancer. HPV-16 and -18 are mainly responsible for the progression of several cancers, including cervix, anus, vagina, penis, vulva, and oropharynx. The oncogenic ability of HPV is not only sufficient for the progression of malignancy, but also for other tumor-generating steps required for the production of invasive cancer, such as coinfection with other viruses, lifestyle factors such as high parity, smoking, tobacco chewing, use of contraceptives for a long time, and immune responses such as stimulation of chronic stromal inflammation and immune deviation in the tumor microenvironment. Viral evasion from immunosurveillance also supports viral persistence, and virus-like particle-based prophylactic vaccines have been licensed, which are effective against high-risk HPV types. In addition, vaccination awareness programs and preventive strategies could help reduce the rate and incidence of HPV infection. In this review, we emphasize HPV infection and its role in cancer progression, molecular and immunopathogenesis, host immune response, immune evasion by HPV, vaccination, and preventive schemes battling HPV infection and HPV-related cancers.
PubMed: 38133265
DOI: 10.3390/pathogens12121380 -
Journal of Pediatric and Adolescent... Jun 2024Nonsexual acute genital ulcerations (NAGUs), also known as Lipschütz ulcers, are vulvar ulcers occurring predominantly in adolescent females. Although the pathogenesis...
Nonsexual acute genital ulcerations (NAGUs), also known as Lipschütz ulcers, are vulvar ulcers occurring predominantly in adolescent females. Although the pathogenesis is unknown, NAGUs are commonly associated with systemic infections. Here, we present a female child with NAGU along with disseminated Lyme disease. We believe this is the first reported pediatric case of this phenomenon.
Topics: Humans; Female; Ulcer; Lyme Disease; Vulvar Diseases; Child; Adolescent; Anti-Bacterial Agents; Acute Disease
PubMed: 38113972
DOI: 10.1016/j.jpag.2023.12.005 -
Plant Disease Nov 2023Soybean ( L.) is produced in over 70,000 ha in the Altillanura Region, eastern Colombia (Agronet 2023). From 2018 to 2020, foliar symptoms like green stem and foliar...
Soybean ( L.) is produced in over 70,000 ha in the Altillanura Region, eastern Colombia (Agronet 2023). From 2018 to 2020, foliar symptoms like green stem and foliar retention of soybean, which in Brazil can cause up to 100% soybean yield losses (Meyer et al. 2017), were observed in soybean fields in Colombia. During 2020, samples from symptomatic plants in reproductive stages (R1-R8) were collected from different commercial soybean fields in the Altillanura Region. Over 200 samples were processed, using an incubation method described in Coyne et al. (2014). Nematodes were recovered from photosynthetic leaf tissues and enlarged nodes/buds with population densities ranging from 13 to 132 and 36 to 936 nematodes/10g, respectively. Adult females were morphologically and molecularly characterized as (Oliveira et al. 2019; Subbotin et al. 2020). Female body length (n = 20) ranged from 653.3 to 806.3 μm (mean = 723 μm ± 52.7), stylet length from 11.0 to 12.3 μm (11.8 μm ± 0.3), body diameter from 14.8 to 17.9 μm (16.3 μm ± 1.1), post-uterine sac length from 38.7 to 51.9 μm (44.6 μm ± 5.1), vulva to anus from 145.5 to 223.2 μm (172.2 μm ± 22.4), and 26% of the vulva-anus distance. Genomic DNA was extracted (QIAGEN DNeasy® Blood & Tissue kit) from a pool of nematodes. The D2A/D3B (Tenente et al. 2004) primers were used to amplify and sequence the D2/D3 expansion region of the 28S rRNA gene. PCR product (~759 bp) was purified, sequenced, deposited in GenBank (OQ930285), and compared to previously deposited sequences (e.g., KX356756, KY510840, KY510839, KY510841, KT692694, KY510842, MH187565) by means of the BLAST algorithm. Similarly, 988F and 18SR-Burs (De Jesus et al. 2016) primers were used to amplify and sequence the near full-length 18S RNA gene (SSU). PCR product was purified, sequenced, deposited in GenBank (OQ954344), and compared to previously deposited sequences (e.g., KT454962, KT943534, KT943535, KY510835, KY510836, KY510837, KY510838, MH187565). Phylogenetic Bayesian analysis (Ronquist et al. 2012) of the of the D2/D3 and 18S regions placed this nematode from Colombia in the clade (PP = 100). To fulfill a modified Koch's postulates, the population described above was used in a greenhouse assay. In total, 120 soybean plants (cv. Flor Blanca) were infected with 200 (females + males)/plant. Briefly, at cotyledon stage (VC), 50 µl aliquot containing 50 was delivered onto each cotyledon and unifoliolate leaves (200 nematodes/plant). Sterile water was delivered to 80 plants which served as control. Plants were kept in the greenhouse at approximately 25°C and covered with clear plastic bag for 72 h to maintain over 90% relative humidity. After 15, 30, 45, and 60 days, soybean plants (n = 20) were processed, quantified, and the average reproduction factor (final population/initial population) was 0.1, 2.9, 14.0, and 1.8, respectively. Infected plants showed symptoms of blistering leaves with malformation (midrib vein twist), and was not observed in control plants. To our knowledge, this is the first report of parasitizing soybean buds and leaves in Colombia. Soybean is an important commodity for the Altillanura Region, and it is important to monitor the risk posed by this nematode. Furthermore, a better understanding of the nematode-host interaction and epidemiology in Colombia soybean producing regions is needed.
PubMed: 38085963
DOI: 10.1094/PDIS-06-23-1117-PDN -
International Journal of Women's Health 2023Bacterial vaginosis is one of the most frequent vaginal tract infections during pregnancy. It is characterized by elevated vaginal pH, milky, creamy discharge, and an...
BACKGROUND
Bacterial vaginosis is one of the most frequent vaginal tract infections during pregnancy. It is characterized by elevated vaginal pH, milky, creamy discharge, and an amine- or fishy-smelling odor.
STUDY AIM
Our study aimed to describe the characteristics and presenting manifestations of bacterial vaginosis in pregnant women.
METHODS
This cross-sectional analytical study included pregnant Saudi women who have been diagnosed with bacterial vaginosis. Data was collected using a self-administered questionnaire. We used the Statistical Package for Social Sciences (SPSS) version 26 for data management and statistical analysis.
RESULTS
The study included 456 women and found that 59.7% of people felt vulval itching, 7.7% reported swelling, 81% reported increased secretions, 62.5% reported dyspareunia, and 44.6% reported burning micturition. Thirty-one percent of individuals reported yellowish discharges, while 32.1% reported a foul odor. Older women with lower educational levels, who had vaginal itching and swelling, had significantly higher rates of burning urination.
CONCLUSION
Our study found that most of the presenting symptoms were significantly associated with dyspareunia and dysuria. The study also shows that nearly all the participants recovered with proper treatment. We recommend healthcare systems meticulously detect and cure bacterial vaginosis as it is a preventable cause of complicated pregnancy.
PubMed: 38077234
DOI: 10.2147/IJWH.S440147 -
The Pediatric Infectious Disease Journal Mar 2024
Topics: Child; Humans; Impetigo; Vulva; Female
PubMed: 38063507
DOI: 10.1097/INF.0000000000004204 -
Journal of Helminthology Dec 2023Caucasus is known as one of the few biodiversity hotspots in Europe and is characterised by rich gastropod fauna while the nematode fauna in association with gastropods...
Caucasus is known as one of the few biodiversity hotspots in Europe and is characterised by rich gastropod fauna while the nematode fauna in association with gastropods has remained largely understudied. Surveys conducted in 2019 and 2021 in the North Caucasus of the Russian Federation (Stavropol Upland and western and central parts of Krasnodar Krai) has revealed the presence of three new species of , a facultative parasite of land gastropods, and two species of obligate parasites, the intestinal parasite and a new, still undescribed species of a larval ectoparasite sp. The new associations of sp. and sp. with land gastropods were recorded for the first time in the Russian Federation. The new species of Dougherty, 1953 described here is based on the analysis of morphology and molecular studies of two distant and morphologically distinct strains, and n. sp. was characterised by females possessing a tail of about 95-100 μm long, broadly conical in shape in the and strains, with a rounded anterior part and a subulate terminal part as long as the former; prominent phasmids located at the mid-tail, equatorial vulva position, a lateral field of three ridges (four incisions), males with spicules featuring a hole at the distal tip, ensheathed infective juveniles with average length 717 μm in the strain and 771 μm in the strain, and exsheathed ones 644 μm and 682 μm, respectively. ITS-based phylogenetic analyses revealed that all species found in Ciscaucasia and Transcaucasia probably belong to two separate clades, with independent evolutionary histories of colonisation of this area. The entire Caucasus range area appears to serve as a biodiversity hotspot for the genus , presumably due to its complicated geological history and repeated isolation events for its terrestrial mollusc hosts.
Topics: Male; Female; Animals; Gastropoda; Phylogeny; Rhabditoidea; Rhabditida; Russia
PubMed: 38037423
DOI: 10.1017/S0022149X2300072X -
Clinical Obstetrics and Gynecology Mar 2024Genitourinary syndrome of menopause is a common, under-reported, and undertreated chronic progressive condition requiring long-term treatment. Hypoestrogenism in the...
Genitourinary syndrome of menopause is a common, under-reported, and undertreated chronic progressive condition requiring long-term treatment. Hypoestrogenism in the urogenital tissues is associated with bothersome dyspareunia, vulvovaginal symptoms, overactive bladder, and frequent urinary tract infections. Vaginal hormone therapies, including vaginal estrogen and intravaginal dehydroepiandrostenedione, are safe and effective and improve symptoms and clinical findings. Systemic hormone therapy treats vulvovaginal atrophy less effectively than vaginal hormone therapies with increased stress and urge urinary incontinence. Oral ospemifene effectively treats vaginal dryness and dyspareunia. Clinicians need to ask about symptoms of genitourinary syndrome of menopause, confirm the diagnosis, and suggest appropriate treatment options.
Topics: Female; Humans; Dyspareunia; Vulva; Menopause; Vagina; Hormones; Atrophy
PubMed: 38032827
DOI: 10.1097/GRF.0000000000000835 -
Journal of Nematology Feb 2023Pigeons are a cosmopolitan group of birds with abundant and large populations associated with human activities. This study focused on determining parasitic infections...
Pigeons are a cosmopolitan group of birds with abundant and large populations associated with human activities. This study focused on determining parasitic infections within domestic pigeons (). Forty-eight pigeons were examined for infections, of which 29.16% were infected with a nematode parasite, identified as (Habronematidae), under the koilin layer of their gizzards. The population of nematodes in infected gizzards did not exceed 20 adult worms. DNA from the gizzard worms was extracted and subjected to PCR using primers that amplify the partial 18S rDNA and cytochrome C oxidase subunit I (COX I) regions. Identification of this parasite based on microscopic study revealed the presence of trilobed lips with cephalic papillae and amphidial pores, as well as other characteristic features. In males, spicules were unequal with the presence of six pedunculated pairs of caudal papillae (4 pre- and 2 post-anal) and a tail surrounded with caudal ala. In females, the vulva was a rounded aperture located in front of the posterior end of the esophagus and uteri, which was filled with numerous embryonated eggs. DNA Sequences from partial 18S rDNA were homologous to sequences obtained from in GenBank with a high percentage of identity. DNA sequences from mitochondrial gene COX I, however, were unique, and they were the first sequenced for , since no sequences for this taxon were previously available in GenBank. Histopathological examination revealed enlargement of infected gizzards in comparison to non-infected ones, with the presence of necrosis and interstitial infiltration in the koilin layer. Concentrations of heavy metals (Fe, Cu, Zn, Cd, Cr, and Co) were measured using inductivity-coupled plasma in tissues (liver, muscles, and gizzards) from infected and non-infected pigeons as well as their parasites. Results showed different affinities of metals to tissues. Recovered parasites can minimize element concentration from their pigeon tissues. In Saudi Arabia, this study was considered the first report identifying pigeon nematodes and evaluating of the effects of their pathogenicity on the animals' welfare, as well as their application as a useful tool for monitoring environmental pollution.
PubMed: 38026547
DOI: 10.2478/jofnem-2023-0050 -
FEMS Microbiology Letters Jan 2023Bacterial vaginitis (BV) is a syndrome of increased vaginal discharge, fishy smelling leucorrhea, and itching and burning vulva caused by the microecological imbalance...
Bacterial vaginitis (BV) is a syndrome of increased vaginal discharge, fishy smelling leucorrhea, and itching and burning vulva caused by the microecological imbalance in the vagina induced by mixture of Gardnerella vaginalis (GV) and some anaerobic bacteria. Fenticonazole, an imidazole derivative and antimicrobial compound, has been demonstrated to exert effective therapeutic effects in mixed vaginitis. Accordingly, our study was designed to explore the potential role of fenticonazole in GV-infected BV mouse models. Female C57/BL6 mice were injected intraperitoneally with β-estradiol 3 days before and on the day of GV infection to maintain a pseudoestrus state. On the day of infection, mice were intravaginally inoculated with 20 µl of a suspension of GV (6 × 106 CFU/ml). Fenticonazole was administered as 2% vaginal cream (0.2 mg each mouse) by intravaginal application once a day for 3 days beginning the day of infection. At day 3 postinfection, the mice were sacrificed and vaginal washes were harvested. GV proliferation and Lactobacillus content were calculated in the vaginal lavage. Neutrophil counts in the vaginal lavage were observed through Pap staining. Myeloperoxidase (MPO) activity and proinflammatory cytokine (TNF-α, IL-1β, IL-6, iNOS, COX2, and NF-κB) levels in vaginal tissues were measured by ELISA and western blotting. Vaginal tissues were stained by hematoxylin and eosin (H&E) to examine the exfoliation of vaginal epithelial cells. GV infection increased GV proliferation and neutrophil counts but reduced Lactobacillus content in the vaginal lavage, as well as enhanced MPO activity, proinflammatory cytokine levels, and the exfoliation of vaginal epithelial cells in vaginal tissues of BV mouse models. However, administration of fenticonazole significantly ameliorated the above phenomena. Fenticonazole greatly improves the symptoms of GV-induced BV in mouse models.
Topics: Humans; Female; Animals; Mice; Vaginosis, Bacterial; Gardnerella vaginalis; Imidazoles; Vagina; Lactobacillus; Cytokines
PubMed: 37960949
DOI: 10.1093/femsle/fnad119