OBJECTIVE: The saliva of individuals with oropharyngeal gonorrhoea can contain viable Neisseria gonorrhoeae. This study examined if using saliva as a lubricant for masturbation is a risk factor for urethral gonorrhoea among men who have sex with men (MSM).
METHODS: In this cross-sectional study, MSM aged ≥18 years attending the Melbourne Sexual Health Centre between February 2021 and December 2023 were surveyed. Data were collected on sexual activities in the past seven days, including receiving fellatio, condomless insertive anal sex, docking, and using saliva for masturbation. Multivariable logistic regression examined associations between these exposures and urethral gonorrhoea.
RESULTS: The median age of the 3114 men was 32 (IQR: 27-40), with 4.7% (n=145) testing positive for urethral gonorrhoea. Urethral gonorrhoea was independently associated with an increasing number of partners for condomless insertive anal sex (p<0.001). It was not significantly associated with receiving fellatio (p=0.613), docking (p=0.207), or using saliva for masturbation (p=0.117). However, of the 110 men who only used saliva for masturbation, two (1.8%) had urethral gonorrhoea, and one (0.9%) had both urethral and oropharyngeal gonorrhoea.
CONCLUSIONS: Condomless insertive anal sex is the leading risk factor for urethral gonorrhoea and not using saliva as a lubricant for masturbation.

UNASSIGNED: Molluscum contagiosum (MC) typically presents as asymptomatic or itchy, discrete, smooth, flesh-colored, dome-shaped papules with central umbilication. Lesions on the genitals are often sexually transmitted and tend to be seen in young adults. Homologous auto implantation is a simple technique which helps in inducing a cell-mediated immune response to the antigens, aiding clearance of both local and distant lesions.
UNASSIGNED: The aim of the study is to evaluate the efficacy and side effect of the technique of autoinoculation for the treatment of genital MC in terms of reduction in number of lesions.
UNASSIGNED: Thirty-one patients having >5 genital molluscum attending skin outpatient department were enrolled out of which 30 remain. A well-defined mc lesion was approached using an insulin syringe (30 G) and pierced from a site just adjacent to the lesion. Results were assessed every 2 weeks for 2 months.
UNASSIGNED: 60% (n = 18) patients showed excellent response, 20% (n = 6) patients showed very good response, 6.6% (n = 2) patients showed good response and 13.3% (n = 4) showed poor response at the end of the study.
UNASSIGNED: The autoinoculation technique is an effective technique in terms of excellent clearance of MC lesions with fewer chances of recurrence, side effects, and shorter duration taken to achieve a complete response to distant lesions.

BACKGROUND: Verruca plana is a benign proliferation of the skin caused by human papilloma virus (HPV) infection. Fresh garlic can serve as an alternative therapy, and it has shown considerable effectiveness as a topical treatment for verruca plana. However, topical garlic treatment for verruca plana triggered Koebner phenomenon (KP), which has not been previously reported.
OBJECTIVE: The aim of our report is to explore the possible causes of this adverse reaction.
METHODS: We here describe a 20-year-old female patient who developed a beaded rash after garlic treatment for facial wart plana, known as autoinoculation or KP.
RESULTS: Garlic may have caused damage to the surrounding normal skin through primary irritation or allergic reactions. Then, the HPV virus on the primary verruca plana took the opportunity to spread to the surrounding skin injured by garlic stimulation, triggering the KP.
CONCLUSIONS: When using garlic to treat verruca plana, the operator needs to precisely apply the mashed garlic to the warts, and this treatment is strictly prohibited for patients who are allergic to garlic. Avoid such adverse reactions.

暂无摘要。

BACKGROUND: Trichophyton rubrum, an important aetiological agent of superficial dermatophytosis, occasionally penetrates into deeper tissues, causing inflammation and a granulomatous response. Only few case reports of T. rubrum granuloma with molecular evidence for autoinoculation have been published.
OBJECTIVE: To find the genetic basis of adaptation to a different microhabitat following autoinoculation of Trichophyton rubrum.
METHODS: A case of Majocchi\'s granuloma is reported, with isolation of T. rubrum strains from foot and chin, respectively. Whole-genome sequencing of the two strains has been performed. Phylogenetic reconstruction and SIFT analysis were conducted.
RESULTS: A phenotypic difference has been observed between the two isolates. 20 and 19 indels, 8 and 15 SNVs were found in foot and chin strains, respectively. Foot and chin strains formed a monophyletic group. Two non-synonymous mutations of chin strains were observed in the TERG_06754 gene encoding cytochrome c peroxidase (CCP). The G293C amino acid change in TERG_03373 was predicted to affect protein function significantly. The mutated amino acid (cysteine) was only found in the chin strain in all dermatophyte non-redundant sequences.
CONCLUSIONS: Non-synonymous mutations located in TERG_06754 and TERG_03373 were predicted to affect protein functions, which may facilitate the adaption for invasion of the superficial cutaneous strain. As the different living environments of these two strains (oxygenous, lower-temperature for the pedal strain; hypoxia, higher-temperature for the chin strain), a stratum corneum-to-dermal adaption hypothesis of T. rubrum was proposed.

BACKGROUND: Homologous autoinoculation is a novel minimally invasive procedure that treats warts by stimulating specific immune response.
OBJECTIVE: To evaluate the efficacy and safety of autoinoculation in treatment of multiple recalcitrant warts of different types in relation to patient\'s age, gender, type, number, size, and duration of warts.
METHODS: Two hundred patients with multiple recalcitrant warts of different types were treated with one autoinoculation session. Each patient was subjected to history taking, general and dermatological examination, and photographic documentation before and after treatment. Patients were followed up after 1 week, 2, 12, and 16 weeks to assess possible side effects, treatment response, and recurrence rate, respectively. Evaluation of treatment response was done through physician assessment according to change in size or number of warts or both.
RESULTS: After 12 weeks of procedure, 66% of patients showed complete clearance, 26% showed moderate clearance, and 4% showed mild clearance while only 1.5% of patients showed treatment failure, with negligible side effects and no recurrence. There was negative correlation between treatment response and wart duration (P < .001).
CONCLUSIONS: Autoinoculation is effective in treating multiple recalcitrant warts irrespective of their type, number or size, with minimal complications and no recurrence. The longer wart duration is, the less treatment response will be achieved.

Little is known about the risk for acquiring a concordant human papillomavirus (HPV) infection in a genital (or anal) site after an anal (or genital) HPV infection. We collected 3 sets of anogenital specimens at 6-month intervals from 2,309 men and 2,378 women in Liuzhou, China, and tested these specimens for HPV. The risk for sequential anal HPV infection in participants with a previous genital HPV infection was higher than for participants without an infection (hazard ratio [HR] 4.4, 95% CI 3.4-5.8 for women and HR 2.6, 95% CI 1.4-4.6 for men). For sequential genital HPV infection, women with a previous anal infection had a higher risk (HR 1.9, 95% CI 1.2-3.1), but no major difference was found for men (HR 0.7, 95% CI 0.2-1.9). Our study indicates that autoinoculation might play a major role in anogenital HPV transmission, in addition to direct sexual intercourse, especially for anal infection in women.

Viral warts are well-defined, hyperkeratotic mucocutaneous lesions caused by human papilloma virus infection, that can occur anywhere on the body. Various medical and surgical modalities are required for treatment of warts as spontaneous regression is rarely seen. Despite the availability of multiple treatment options, warts are often recurrent and resistant to treatment. The effectiveness of autoinoculation in the treatment of multiple or recurrent verruca was evaluated. Consecutive cases with at least five warts or recurrent warts were included. A treatment-free washout period of 1 month was ensured. Patients with verruca vulgaris (n = 13), palmoplantar (n = 4), periungual (n = 5) were included in the study. The warty tissue was excised, minced and homogenous tissue implanted in a small dermal pocket in the left forearm. Patients were evaluated every 4 weeks. The procedure was repeated at 4th and 8th week. Response was assessed at each visit and at 12th week. Fifteen cases were recruited. Majority of the patients were diagnosed with verruca vulgaris (87%, n = 13) followed by periungual warts (33%, n = 5) and palmoplantar warts (27%, n = 4). Recurrent warts were present in 73% (n = 11) patients. Average improvement at the end of 12 weeks was seen in 65% cases. Ten (67%) patients showed complete resolution of warts. In two patients, warts increased in number while on treatment. Local site infection was seen in two patients. The study is limited by its small sample size. Autoinoculation is an effective modality of treatment for multiple and recurrent warts. Furthermore, it is an effective treatment modality for periungual and plantar warts, which are usually resistant to other modalities.

Since the 1920s the gold standard for treating cancer has been surgery, which is typically preceded or followed with chemotherapy and/or radiation, a process that perhaps contributes to the destruction of a patient\'s immune defense system. Cryosurgery ablation of a solid tumor is mechanistically similar to a vaccination where hundreds of unique antigens from a heterogeneous population of tumor cells derived from the invading cancer are released. However, releasing tumor-derived self-antigens into circulation may not be sufficient enough to overcome the checkpoint escape mechanisms some cancers have evolved to avoid immune responses. The potentiated immune response caused by blocking tumor checkpoints designed to prevent programmed cell death may be the optimal treatment method for the immune system to recognize these new circulating cryoablated self-antigens. Preclinical and clinical evidence exists for the complementary roles for Cytotoxic T-lymphocyte-associated protein (CTLA-4) and PD-1 antagonists in regulating adaptive immunity, demonstrating that combination immunotherapy followed by cryosurgery provides a more targeted immune response to distant lesions, a phenomenon known as the abscopal effect. We propose that when the host\'s immune system has been \"primed\" with combined anti-CTLA-4 and anti-PD-1 adjuvants prior to cryosurgery, the preserved cryoablated tumor antigens will be presented and processed by the host\'s immune system resulting in a robust cytotoxic CD8+ T-cell response. Based on recent investigations and well-described biochemical mechanisms presented herein, a polyvalent autoinoculation of many tumor-specific antigens, derived from a heterogeneous population of tumor cancer cells, would present to an unhindered yet pre-sensitized immune system yielding a superior advantage in locating, recognizing, and destroying tumor cells throughout the body.

The human papillomavirus (HPV) is sexually transmitted and can infect oral, genital, and anal sites in the human epithelium. Here, we develop a multisite transmission model that includes autoinoculation to study HPV and other multisite diseases. Under a homogeneous-contacts assumption, we analyze the basic reproduction number R0, as well as type and target reproduction numbers, for a two-site model. In particular, we find that R0 occupies a space between taking the maximum of next generation matrix terms for same site transmission and taking the geometric average of cross-site transmission terms in such a way that heterogeneity in the same-site transmission rates increases R0 while heterogeneity in the cross-site transmission decreases it. Additionally, autoinoculation adds considerable complexity to the form of R0. We extend this analysis to a heterosexual population, which additionally yields dynamics analogous to those of vector-host models. We also examine how these issues of heterogeneity may affect disease control, using type and target reproduction numbers.