Organoids have emerged as transformative tools in biomedical research, renowned for their ability to replicate the complexity construct of human tissues. Skin aging is a multifaceted biological process, influenced by both intrinsic factors and extrinsic factors. Traditional models for studying skin aging often fall short in capturing the intricate dynamics of human skin.
View Article and Find Full Text PDFThe question of whether serofast status of syphilis patients indicates an ongoing low-grade infection remains unanswered. To address this, we developed a machine learning model to identify in cell-free DNA (cfDNA) using next-generation sequencing (NGS). Our findings showed that a TP_rate cut-off of 0.
View Article and Find Full Text PDFSerology is the mainstay for syphilis treatment monitoring. Baseline rapid plasma reagin (RPR) titre, HIV status, and syphilis stage have been found to be associated with the time to serological response among syphilis patients. This study mainly aims to evaluate the time to serological response, and to identify factors affecting the serological outcome.
View Article and Find Full Text PDFChin Med Sci J
December 2021
Objective To analyze the reasons of misdiagnosis of primary syphilitic chancre and strengthen the understanding of atypical features of this disease. Methods A case series of twenty-seven challenging primary syphilis patients who were not immediately recognized as chancre was included in our study. The clinical data including the patients' age, sex, skin lesions, HIV status, syphilis serologic test results, treatment, and follow-up results were collected.
View Article and Find Full Text PDFSex Transm Infect
November 2021
Acta Derm Venereol
October 2020
Syphilis, human immunodeficiency virus (HIV), hepatitis B virus (HBV) and hepatitis C virus (HCV) share transmission routes. Syphilis infection can increase the risk of acquiring and transmitting HIV in key populations. The aims of this study were to investigate the risk factors and co-infection patterns for HIV, HBV and HCV in patients with syphilis.
View Article and Find Full Text PDFWe compared the clinicopathological features and prognosis between 16 amelanotic acral melanomas versus 56 pigmented acral melanomas. Amelanotic acral melanomas showed a thicker Breslow thickness (all had a Breslow thickness > 1 mm), more frequent ulceration (15/16, 93.7%) and lower HMB-45 positive rate than pigmented acral melanomas.
View Article and Find Full Text PDFCutaneous amelanotic melanoma (AM) is a rare amelanotic or a hypomelanotic subtype of melanoma, comprising only 0.4-27.5% of all melanoma cases.
View Article and Find Full Text PDFPersistent non-treponemal titres after treatment are common among patients with latent syphilis. Although retreatment is often done in clinical practice, optimal management remains uncertain due to the paucity of data regarding serological response to retreatment and long-term outcomes. We compared the serological responses of serofast latent syphilis patients retreated with 7.
View Article and Find Full Text PDFZhongguo Yi Xue Ke Xue Yuan Xue Bao
April 2014
Objective: To summarize the epidemiological features of senile syphilis.
Method: The clinical data of 50 elderly (>60 years) patients with syphilis who were treated in the Clinic of Sexually Transmitted Diseases of Peking Union Medical College Hospital were retrospectively analyzed.
Results: There were 31 men and 19 women (male to female ratio:1.
A cutaneous lymphoproliferative disorder, localized pagetoid reticulosis (LPR), is rare but distinctive in its clinical and histopathological manifestations. Without an evidence-based medicine treatment guideline because of extremely low incidence, LPR poses a therapeutic challenge. We describe a 67-year-old Chinese woman with LRP who showed complete response to narrow-band ultraviolet B combined with intramuscular interferon alpha-2b.
View Article and Find Full Text PDFJ Infect Dev Ctries
February 2014
Introduction: Benzathine penicillin G is the treatment of choice for syphilis, but doxycycline and tetracycline are effective second-line treatments. The objective of this study was to assess the serological response to treatment for early syphilis with benzathine penicillin compared with doxycycline or tetracycline.
Methodology: We examined rapid plasma regain (RPR) serological test results of all first-time early syphilis patients in Peking Union Medical College Hospital between 2000 and 2011, comparing treatment with two doses of penicillin to 14-day course of oral doxycycline (100 mg twice daily) or oral tetracycline (500 mg 4 times a day).
Background: The nevus of Ota, is a common benign pigmentary dermatosis, mainly involve innervation area of first and second branch of trigeminal nerve. The classification of nevus of Ota was proposed by Tanino, based on 26 cases of nevus of Ota from 1937 to 1940. Studies about its classification are rarely seen in last 70 years, while it is still practical today.
View Article and Find Full Text PDFWe aimed at determining the characteristics of patients with primary and late latent syphilis who were non-reactive on initial screening by rapid plasma reagin (RPR) but reactive by treponemal tests. We collected the RPR test results of all primary and late latent syphilis patients in our hospital from December 2000 to March 2012. The characteristics of syphilis patients who were non-reactive by RPR testing were compared to those of reactive patients.
View Article and Find Full Text PDFBackground: Erythroderma is a rare skin disorder and studies on its causes and prognosis are rare in the literature.
Objectives: We reviewed the clinical, laboratory and biopsy materials of 260 patients diagnosed with erythroderma who were treated in our department over an 11-year period. Patients were followed up to better understand the evolution of erythroderma.
Syphilis, a chronic bacterial infection caused by the spirochete Treponema pallidum subsp. pallidum, remains a public health concern worldwide. Syphilis control is largely dependent upon early identification and prompt treatment.
View Article and Find Full Text PDFZhongguo Yi Xue Ke Xue Yuan Xue Bao
October 2011
Objective: To explore the clinical and histopathological manifestations, therapy and prognosis of lupus erythematosus panniculitis (LEP).
Method: We retrospectively reviewed the clinical data and histopathological features of 22 cases of LEP diagnosed at Peking Union Medical College Hospital from January 2008 to February 2010.
Results: The lesions appeared as atrophy, erythema, subcutaneous nodules, infiltrated erythema, and ulceration over the scalp, face, upper limbs, and buttock.
Zhonghua Yi Xue Za Zhi
December 2010
Objective: To explore the clinical and histopathological manifestations, therapy and prognosis of hypopigmented mycosis fungoides (HMF) in children.
Methods: Six pediatric cases of HMF from February 2008 to October 2009 were reviewed and analyzed at our hospital.
Results: There were 5 males and 1 female with a average age of 11 years old (range: 9-14).