• 文章类型: Case Reports
    头癣,主要由毛癣菌和小孢子菌等皮肤癣菌引起,是一种影响头皮和头发的浅表真菌感染,常见于青春期前儿童,但罕见于成人。在这里,我们报告了一个成年女性头癣的独特病例,表现为头皮尖部弥漫性脱发和红斑炎症,模仿脂溢性皮炎.使用荧光显微镜和真菌培养物检查头发和头皮,确定了球形马拉色菌菌丝的存在,糠马拉色菌和犬小孢子菌。患者接受口服抗真菌药物治疗3个月,导致皮疹和随后的头发再生的解决,6个月随访期间无复发。犬小孢子菌和马拉色菌(球形马拉色菌和糠马拉色菌)的体外共培养实验表明,马拉色菌似乎促进犬小孢子菌的生长,而没有观察到相反的情况。这些数据表明,马拉色菌使用长链脂肪酸可能会降低其抗菌作用,可能有助于犬小孢子菌引起的成人头癣的发展。
    Tinea capitis, primarily caused by dermatophytes such as Trichophyton and Microsporum species, is a superficial fungal infection affecting the scalp and hair, commonly observed in prepubertal children but rare in adults. Here we report a unique case of an adult female with tinea capitis presenting as diffused alopecia and erythema inflammation on the scalp\'s apex, mimicking seborrheic dermatitis. Examination of the hair and scalp using fluorescence microscopy and fungal culture identified the presence of hyphae from Malassezia globosa, Malassezia furfur and Microsporum canis. The patient underwent with oral antifungal treatment for 3 months, resulting in the resolution of the rash and subsequent hair regrowth, with no recurrence during 6-month follow-up. In vitro co-culture experiments of Microsporum canis and Malassezia (both Malassezia globose and Malassezia furfur) revealed that Malassezia appears to facilitate Microsporum canis growth, while the reverse was not observed. This data suggests that Malassezia\'s use of long-chain fatty acids by might reduce its antibacterial effect, potentially aiding adult tinea capitis development caused by Microsporum canis.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    头癣(TC)是一种常见的头皮真菌感染,尤其是儿童。毛管镜检查是一种非侵入性技术,可以在体内快速和放大地观察头发,并可视化肉眼通常无法察觉的形态特征。
    本研究旨在评估内窥镜在临床诊断中的有用性,并研究TC的各种临床形态学模式。
    这个横截面,观察性研究包括在1年期间(2021年4月至2022年3月)发现的140例TC临床诊断病例.所有患者均使用皮肤镜进行评估(DermliteDL4Multispectrical3Gen,圣胡安·卡皮斯特拉诺,CA,美国,10×)。
    本研究中TC的患病率为每千人2.69。最常见的临床变异是灰色斑块,其次是kerion和黑点,最常见的病因是扁桃体毛癣菌。特征性的毛发特征如下:逗号毛(80%),其次是开瓶器毛(68.6%),弯曲的头发(54.2%),之字形毛发(35.7%),和类似摩尔斯电码的毛发(15%)。其他发现包括缩放(89.2%),其次是黑点(67.1%),断发(42.8%),结痂和脓疱(各32.1%)。逗号和开瓶器形状的头发在黑点类型中最常见,而锯齿形,弯曲的头发,莫尔斯电码毛在TC的灰色斑块类型中很常见。三镜检查结果与TC类型之间存在显着关联。
    毛管镜检查可以被认为是一种新颖的工具,用于快速诊断和选择适当的治疗方法以及监测TC的治疗效果。
    UNASSIGNED: Tinea capitis (TC) is a common fungal infection of the scalp, especially in children. Trichoscopy is a noninvasive technique that allows rapid and magnified in vivo observation of the hair with the visualization of morphologic features that are often imperceptible to the naked eye.
    UNASSIGNED: This study aimed to evaluate the usefulness of trichoscopy in clinical diagnosis and to study various clinico-morphological patterns of TC.
    UNASSIGNED: This cross-sectional, observational study included 140 clinically diagnosed cases of TC seen during a period of 1 year (April 2021 to March 2022). All patients were evaluated using a dermoscope (DermLite DL4 Multispectral 3 Gen, San Juan Capistrano, CA, USA,10×).
    UNASSIGNED: The prevalence rate of TC in this study was 2.69 per thousand population. The most common clinical variant was gray patch followed by kerion and black dot, and the most common etiological agent was Trichophyton tonsurans. The characteristic trichoscopic features were as follows: comma hairs (80%), followed by corkscrew hairs (68.6%), bent hairs (54.2%), zigzag hairs (35.7%), and morse code-like hairs (15%). Other findings included scaling (89.2%), followed by black dot (67.1%), broken hairs (42.8%), and crusting and pustules (32.1% each). Comma and corkscrew-shaped hairs were most common in the black dot type, whereas zigzag, bent hairs, and morse code hairs were common in the gray patch type of TC. There was a significant association between trichoscopic findings and type of TC.
    UNASSIGNED: Trichoscopy can be considered a novel tool for rapid diagnosis and selection of the appropriate therapy and in the monitoring of treatment efficacy in TC.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    简介头癣,通常被称为头皮癣,是一种影响头皮的真菌感染,睫毛,和眉毛。它通常是由毛癣菌和小孢子菌属的皮肤癣菌引起的。扁桃体毛癣菌和犬小孢子菌是全球大多数头癣病例的主要病因。头癣通常表现为瘙痒,脱发的鳞片状斑块。头癣是全球儿童中普遍存在的皮肤癣菌疾病。方法进行了一项体外评估研究,以评估印度的乙醇提取物的抗真菌特性以及桉树和丁尼红的油。无论是单独还是组合。采用琼脂扩散法和M38-A2微量肉汤稀释法评价了对致病性皮肤癣菌的抗真菌功效,即犬小孢子菌和沙端毛癣菌。将完全成熟的绿叶用乙醇处理,以制备印em叶提取物。此外,进行高效液相色谱分析以确定萜类化合物的含量。氟康唑,一种抗真菌药物,被用作标准。结果研究结果表明,在187.5和375μg/ml的最小抑制浓度下,对于所选草药油,皮肤癣菌的生长总体抑制作用为0.625至2.5μl/ml。而对犬小孢子菌和扁桃体毛癣菌的阳性对照为0.25μg/ml和0.50μg/ml,分别。结论通过对苦参叶中乙醇提取物的植物化学研究发现,萜类化合物的存在。以其显著的生物活性而闻名。该研究的发现证明了印eem叶提取物与桉树和Cymbogon马提尼油组合用于治疗头癣感染的治疗能力。当将印度的叶提取物和油混合时,可以看到更广泛和改善的抗真菌谱。因此,它可以发展成为治疗头癣的合适配方。
    Introduction Tinea capitis, often known as ringworm of the scalp, is a fungal infection that affects the scalp, eyelashes, and eyebrows. It is generally caused by dermatophytes from the genera Trichophyton and Microsporum. Trichophyton tonsurans and Microsporum canis are the main etiological agents responsible for most of the cases of tinea capitis globally. Tinea capitis commonly manifests as itchy, scaly patches of hair loss. Tinea capitis is the prevailing dermatophyte illness among children globally. Methods An in-vitroevaluation study was conducted to assess the antifungal properties of ethanolic extracts of neem leaves and the oils of Eucalyptus citriodora and Cymbopogon martini, both individually and in combination. The agar-well diffusion method and the M38-A2 microbroth dilution method were employed to evaluate the antifungal efficacy against pathogenic dermatophyte strains, namely Microsporum canis and Trichophyton tonsurans. The fully mature green leaves were treated with ethanol to make the neem leaf extract. Additionally, high-performance liquid chromatographic analysis was carried out to determine the contents of the terpenoids. Fluconazole, an antifungal drug, is used as a standard. Results The findings demonstrated an overall inhibition of the growth of dermatophytes at a minimal inhibitory concentration of 187.5 and 375 μg/ml for neem leaf extract and 0.625 to 2.5 μl/ml for selected herbal oils, whereas it was 0.25 μg/ml and 0.50 μg/ml for positive control against Microsporum canis and Trichophyton tonsurans, respectively. Conclusion The phytochemical investigation of the ethanolic extracts in neem leaves revealed the presence of terpenoids, which are known for their significant biological activity. The study\'s findings demonstrated the therapeutic capabilities of neem leaf extract in combination with the oils of Eucalyptus citriodora and Cymbopogon martini for managing the tinea capitis infection. A broader and improved antifungal spectrum was seen when neem leaf extract and oils were combined. Therefore, it can be developed into a suitable formulation for the management of tinea capitis.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    头癣(T.capitis),俗称头皮癣,是影响头皮和头发的真菌感染。在病原体中,犬小孢子菌(M.Canis)脱颖而出,经常从猫传播给人类(人畜共患疾病)。在这项研究中,我们调查了番木瓜的功效(C.木瓜),对皮肤癣菌的水果提取物,尤其是M.canis,在体外和体内。此外,我们旨在确定抑制真菌生长的活性化合物,并评估木瓜对人细胞的毒性。
    它分两个部分进行。首先,体外研究包括以甲醇为溶剂制备木瓜果实提取物,植物提取物的化学分析包括气相色谱-质谱(GC-MS)和傅里叶变换红外光谱(FTIR),使用HUH-7细胞进行细胞毒性测定,采用MTT测定(1-(3-(4,5-二甲基噻唑-2-基)-2,5-二苯基四唑溴化物),对犬分枝杆菌的抗菌活性进行了评估,包括:抑制区(ZI),最小抑制浓度(MIC),最小杀菌浓度(MFC),使用扫描电子显微镜(SEM)和透射电子显微镜(TEM)观察犬M.canis细胞的改变。第二,在Vivo,包括白化病Wistar雄性大鼠。
    木瓜甲醇提取物的植物化学分析揭示了几个官能团,包括羟基,氨,烷烃,碳酸盐,和酒精。此外,GC-MS分析确定了15种化合物,黄嘌呤和癸酸是主要成分。木瓜果实的甲醇提取物表现出有效的抗真菌活性:ZI=37毫米,MIC=1,000μg/mL,MFC=1900μg/mL,MTT结果表明,在20μg/mL的浓度下,水果提取物的细胞毒性较低,50μg/mL,100μg/mL,150μg/mL,和200μg/mL,IC50显示细胞活力随着提取物浓度的增加而显著降低。值得注意的是,木瓜提取物引起犬分枝杆菌菌丝和孢子形态的明显改变。在动物组织中,在用木瓜提取物治疗的大鼠组中观察到改善。这项研究强调了木瓜果实作为天然抗真菌剂的潜力,保证临床应用的进一步探索。
    UNASSIGNED: Tinea capitis (T. capitis), commonly known as scalp ringworm, is a fungal infection affecting the scalp and hair. Among the causative agents, Microsporum canis (M. canis) stands out, often transmitted from cats to humans (zoonotic disease). In this study, we investigated the efficacy of Carica papaya (C. papaya), fruit extract against dermatophytes, particularly M. canis, both in vitro and in vivo. Additionally, we aimed to identify the active compounds responsible for suppressing fungal growth and assess the toxicity of C. papaya on human cells.
    UNASSIGNED: It conducted in two parts. First, In Vitro Study include the preparation of C. papaya fruit extract using methanol as the solvent, Phytochemical analysis of the plant extract including Gas chromatography-mass spectrometry (GC-MS) and Fourier-transform infrared spectroscopy (FTIR) was conducted, Cytotoxicity assays were performed using HUH-7 cells, employing the MTT assay (1-(3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide), Antimicrobial activity against M. canis was evaluated, including: Zone of inhibition (ZI), Minimum inhibitory concentration (MIC), Minimum fungicidal concentration (MFC), M. canis cell alterations were observed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Second, In Vivo, Albino Wistar male rats were included.
    UNASSIGNED: The phytochemical analysis of the methanolic extract from papaya revealed several functional groups, including hydroxyl, ammonia, alkane, carbonate, and alcohol. Additionally, the GC-MS analysis identified 15 compounds, with xanthosine and decanoic acid being the predominant components. The methanolic extract of papaya fruits demonstrated potent antifungal activity: ZI = 37 mm, MIC = 1,000 μg/mL, MFC = 1900 μg/mL, MTT results indicated lower cytotoxicity of the fruit extract at concentrations of 20 μg/mL, 50 μg/mL, 100 μg/mL, 150 μg/mL, and 200 μg/mL, The IC50 revealed a significant decrease in cell viability with increasing extract concentration. Notably, papaya extract induced considerable alterations in the morphology of M. canis hyphae and spores. In animal tissue, improvements were observed among the group of rats which treated with Papaya extract. This study highlights the potential of C. papaya fruits as a natural antifungal agent, warranting further exploration for clinical applications.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    头癣是由皮肤癣菌引起的头皮和头发的真菌感染,最常影响儿童,也可能影响成人。以前的估计表明,全世界所有头癣病例中有3%至11%发生在成人中,尽管需要最新的流行病学研究来重新评估成人人群中头癣的患病率.绝经后成年女性最常受到头癣的影响,非洲裔美国人或黑人女性尤其处于危险之中。经历拥挤生活条件的成年人,住在动物附近,免疫抑制的人,和/或居住在有受影响儿童的家庭中的人感染的风险最大。头癣可以是非炎性或炎性的,亚型影响临床症状的范围和严重程度。真菌培养和氢氧化钾制剂是最常用的诊断工具。显微镜检查,定义为头皮和头发的皮肤镜成像,是体检的有用辅助手段。治疗的主要手段是口服抗真菌药物,和局部治疗单独不推荐。由于头癣感染在成人中并不常见,目前尚无广泛接受的治疗指南.相反,儿童头癣感染的相同药物建议成人使用不同剂量,包括灰黄霉素,还有特比萘芬,and,不太常见,伊曲康唑和氟康唑。如果给予及时和充分的治疗,成人头癣的预后通常很好;然而,诊断延迟或治疗不当可导致瘢痕性脱发。在过去的十年里,已经出现了对局部和口服抗真菌药物治疗具有抗性的皮肤癣菌感染。虽然迄今为止很少报道对抗真菌治疗耐药的头癣感染,抗真菌耐药性在浅表真菌感染中总体上升,和抗真菌管理是必要的,以确保对治疗的耐药性不会在引起头癣的皮肤癣菌中发展。
    Tinea capitis is a fungal infection of the scalp and hair caused by dermatophyte molds, that most often affects children and may also affect adults. Previous estimates suggest that between 3% and 11% of all tinea capitis cases worldwide occur in adults, although updated epidemiological studies are needed to reassess the prevalence of tinea capitis in adult populations specifically. Postmenopausal adult women are most often affected by tinea capitis, with African American or Black women particularly at risk. Adults who experience crowded living conditions, who live in close proximity to animals, who are immunosuppressed, and/or who live in households with affected children are at greatest risk of infection. Tinea capitis can be non-inflammatory or inflammatory in nature, and the subtype affects the extent and severity of clinical symptoms. Fungal culture and potassium hydroxide preparations are the most commonly used diagnostic tools. Trichoscopy, defined as dermoscopic imaging of the scalp and hair, is a useful adjunct to the physical examination. The mainstay of therapy is oral antifungal therapy, and topical therapy alone is not recommended. Since tinea capitis infection is uncommon in adults, there are no widely accepted treatment guidelines. Rather, the same medications used for tinea capitis infection among children are recommended for adults at varying doses, including griseofulvin, and terbinafine, and, less commonly, itraconazole and fluconazole. The prognosis for tinea capitis in adults is typically excellent when prompt and adequate treatment is administered; however, delayed diagnosis or inadequate treatment can result in scarring alopecia. Over the past decade, dermatophyte infections resistant to treatment with topical and oral antifungal agents have emerged. While tinea capitis infections resistant to antifungal therapy have been rarely reported to date, antifungal resistance is rising among superficial fungal infections in general, and antifungal stewardship is necessary to ensure that resistance to treatment does not develop among dermatophytes that cause tinea capitis.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Case Reports
    Kerioncelsi(KC),称为头皮癣,是儿童中最常见的皮肤癣菌病。在墨西哥,它在皮肤癣菌中排名第四,频率为4%-10%。KC是头癣(TC)的炎性品种,最常见的病原体是犬小孢子菌和毛癣菌。我们介绍了一名6岁男性被诊断患有KC的临床病例。直接检查用氯唑黑染色,并进行培养,产生负面结果。组织病理学研究显示,毛干内部和周围有孢子和短菌丝。伊曲康唑治疗是基于对小孢子菌的怀疑而开始的。从内窥镜检查的结果。我们提出了一种用于kerioncelsi的诊断和治疗算法。
    Kerion celsi (KC), known as scalp ringworm, is the most common dermatophytosis in children. In Mexico, it ranks fourth among dermatophytoses, with a frequency of 4%-10%. KC is the inflammatory variety of tinea capitis (TC), with the most common causative agents being Microsporum canis and Trichophyton mentagrophytes. We present the clinical case of a six-year-old male diagnosed with KC. Direct examination stained with chlorazol black and cultures were performed, yielding negative results. Histopathological study revealed spores and short hyphae within and surrounding the hair shaft. Treatment with itraconazole was initiated based on suspicion of Microsporum spp. from the trichoscopy findings. We propose a diagnostic and therapeutic algorithm for kerion celsi.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    简介/目标在摩洛哥,头癣是咨询的常见原因,尤其是儿童。我们的研究旨在确定拉巴特伊本新浪大学医院中心(UHC)寄生虫学和真菌学中心实验室的头癣流行病学。材料和方法这是一项为期25年(从1997年到2021年)的回顾性研究。它包括247例病变提示头癣的患者,他接受了真菌学检查.结果在594份头癣诊断请求中,247例阳性。与成人(13.77%;n=34)相比,儿童(86.23%;n=213)明显占优势。性别比例(M/F)为1.77。毛发寄生主要由纯内皮型占54.47%(n=122)。最常见的两个物种是毛癣菌(51.24%;n=125)和犬小孢子菌(36.06%;n=88)。在儿童中,这两个物种分别占47.42%(n=101)和41.31%(n=88),分别。在成年人中,紫毛癣菌是主要物种,占77.42%(n=24);在女性中,76.41%(n=68);男性以犬小孢子菌为主(50.32%;n=78)。结论该病的流行病学处于不断变化的状态,受各种生活方式因素的影响。我们的研究揭示了在25年的研究期间,嗜血物种的显着上升趋势,而反过来,嗜人物种表现出明显的下降。
    Introduction/Objective In Morocco, tinea capitis is a common reason for consultation, especially in children. Our study aimed to determine the epidemiology of tinea capitis in the Central Laboratory of Parasitology and Mycology at the Ibn Sina University Hospital Center (UHC) in Rabat. Materials and methods This is a retrospective study conducted over 25 years (from 1997 to 2021). It included 247 patients with lesions suggestive of tinea capitis, who underwent a mycological examination. Results Among 594 requests for the diagnosis of tinea capitis, 247 cases were positive. A clear predominance of children (86.23%; n=213) as compared to adults (13.77%; n=34) was observed. The sex ratio (M/F) was 1.77. Hair parasitism was mainly dominated by the pure endothrix type 54.47% (n=122). The two most frequently isolated species were Trichophyton violaceum (51.24%; n=125) and Microsporum canis (36.06%; n=88). In children, these two species represented 47.42% (n=101) and 41.31% (n=88), respectively. In adults, Trichophyton violaceum was the predominant species, accounting for 77.42% (n=24); in females, it was 76.41% (n=68); and Microsporum canis was predominant in males (50.32%; n=78). Conclusion The epidemiology of this condition is in a constant state of flux, influenced by various lifestyle factors. Our research unveiled a notable upward trend in zoophilic species over the 25-year study period, while conversely, anthropophilic species demonstrated a discernible decline.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Case Reports
    暂无摘要。
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Case Reports
    头癣是一种常见的头皮真菌感染,主要影响儿童,由毛癣菌和小孢子菌等真菌引起。其发病机制受宿主特异性和环境因素的影响,导致各种临床表现,包括脱发和头皮结垢。我们介绍了一个八岁男性患有头癣的病例,以枕骨区域瘙痒和脱发为特征。检查显示了在内窥镜检查上的特征性发现,和头发的直接检查证实寄生。开始使用特比萘芬治疗,导致症状的解决。全球存在头癣病因的流行病学差异,毛癣菌在某些地区占主导地位,而小孢子菌在其他地区占主导地位。毛管镜检查是鉴别真菌感染的有价值的诊断工具,指导治疗决策。尽管直接皮肤和头发检查的效率,癣的常见病和许多诊所缺乏真菌学中心构成了挑战。为了解决这个问题,我们建议将三镜检查与流行病学和临床数据整合起来,作为一种快速的办公室决策工具.
    Tinea capitis is a common fungal infection of the scalp, primarily affecting children, and caused by fungi like Trichophyton and Microsporum. Its pathogenesis is influenced by both host-specific and environmental factors, resulting in various clinical presentations including hair loss and scaling of the scalp. We present the case of an eight-year-old male with tinea capitis, characterized by itching and hair loss in the occipital area. Examination revealed characteristic findings on trichoscopy, and direct examination of hair confirmed parasitization. Treatment with terbinafine was initiated, leading to the resolution of symptoms. Epidemiological variations in the etiology of tinea capitis exist globally, with Trichophyton predominating in some regions and Microsporum in others. Trichoscopy is a valuable diagnostic tool for differentiating fungal infections, guiding treatment decisions. Despite the efficiency of direct skin and hair examination, the common occurrence of tinea and the lack of mycological centers in many clinics pose challenges. To address this, we propose integrating trichoscopy and epidemiological and clinical data for a quick in-office decision tool.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Case Reports
    虽然头癣的最初病变通常因其体积较小和毛囊中出现大量毛发而被忽视,至关重要的是,不要忽视逗号或harpin毛发和黑点的部分存在。
    While the initial lesions of tinea capitis are often overlooked due to their small size and numerous hairs emerging from the follicle, it is crucial not to dismiss the partial presence of comma or harpin hairs and black spots.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

公众号