Τετάρτη 21 Αυγούστου 2019

An update on prevalence, diagnosis, treatment and emerging issues of genital mycoplasma infection in Indian women: A narrative review
Deepti Tandon, Kiran Munne, Sanjay Chauhan, Anushree D Patil

Indian Journal of Dermatology, Venereology, and Leprology 2019 85(5):441-447

Despite adequate treatment of reproductive tract infection, there is persistence of symptoms in some patients. This raises the possibility of existence of other silent microbes with pathogenic potential. Apart from the common sexually transmitted organisms such as Chlamydia trachomatis and Neisseria gonorrhoeae, there are other silent and emerging pathogens, like genital mycoplasma, which have been associated with cervicitis, pelvic inflammatory disease, infertility, and pregnancy-related complications in women. Although these organisms were identified decades ago, they are still overlooked or ignored. There is a need to understand the role played by these organisms in Asian populations and their susceptibility to the standard line of treatment. Data on genital mycoplasma infections in Indian women is heterogeneous, with limited evidence of pathogenicity. Although known for their wide spectrum of reproductive morbidities in western counterparts, these microorganisms are yet to gain the attention of Indian clinicians and microbiologists. There is paucity of adequate information in India regarding these infections, so Indian literature was compiled to get an overview of these pathogens, their association with reproductive morbidities, and their response to treatment. Thus, there is a need to explore genital mycoplasma infections in Indian women, especially in the arena of antimicrobial resistance among genital mycoplasma, which has the potential to become a major problem. A literature search with keywords focusing on “genital mycoplasma”, “sexually transmitted infections India”, “sexually transmitted mycoplasma”, and “characteristic of mycoplasma” was carried out through computerized databases like PubMed, MEDLINE, Embase, and Google Scholar. 

Dermatoses due to Arabic cultural and traditional practices
Fatimah Mohammad Budair

Indian Journal of Dermatology, Venereology, and Leprology 2019 85(5):448-454

A number of social and cultural practices are prevalent in the Middle-East celebrating various occasions or to treat health conditions. These often result in dermatoses that are unfamiliar and confusing to dermatologists outside this region. This paper reviews skin manifestations emanating from traditional and ritual practices in Arab countries, particularly those from Saudi Arabia. 

A cross-sectional study of the histopathology and immunology of alopecia areata: Unearthing the role of the Janus kinase–signal transducer and activator of transcription pathway
Anuva Bansal, Vineet Relhan, Vijay Kumar Garg, Ravindra Kumar Saran

Indian Journal of Dermatology, Venereology, and Leprology 2019 85(5):455-461

Background: Alopecia areata is an autoimmune disease that occurs as a result of the loss of the inherent immune privilege of the hair follicle. It has been recently demonstrated that the interferon-γ/interleukin-15 feedback loop that signals via the Janus kinase–signal transducer and activator of transcription pathway is critical to the breakdown of this immune privilege. Aims: To evaluate the immunological distribution of CD4+ T-cells, CD8+ T-cells, phosphorylated signal transducer and activator of transcription 1 and study its relation with the clinical and histopathological findings of the disease. Materials and Methods: A total of 30 patients of alopecia areata were included in the study. Following a detailed history and clinical examination, a scalp biopsy was performed. Histopathology was studied and immunohistochemistry was done to demonstrate the positivity and distribution of CD4+ T-cells, CD8+ T-cells and phosphorylated signal transducer and activator of transcription 1. Results: The follicular count, number of anagen and terminal hair were found to be decreased, whereas the catagen, telogen and vellus hair were found to be increased in number. A peribulbar CD4+ T-cell infiltrate was seen in 70% cases, whereas a CD8+ T-cell infiltrate was seen in 83.3% cases. An intrabulbar CD4+ T-cell infiltrate was seen in 26.7% cases, whereas a CD8+ T-cell infiltrate was seen in 70% cases. Among the 25 hair follicles dermal papilla identified, 36.8% cases were found to be positive for phospho-signal transducer and activation of transcription-1. Limitations: The drawbacks of our study included a small sample size and the use of only vertical sectioning for the scalp biopsy samples. Conclusion: Phosphorylated signal transducer and activator of transcription 1 positivity as an indicator of signalling via the Janus kinase-1/2 pathway was seen in 36.8% of our cases highlighting the integral role of this pathway in the pathogenesis of alopecia areata. 

To determine irradiance of ultraviolet A in ambient sunlight and optimum exposure time for PUVAsol in a North Indian location
Akanksha Kaushik, Dipankar De, Sanjeev Handa, Ankit Mittal

Indian Journal of Dermatology, Venereology, and Leprology 2019 85(5):462-465

Background: Psoralen with ultraviolet A is an effective photochemotherapeutic modality. A subtype of this, PUVAsol, uses sunlight as the natural source of ultraviolet A. The amount of sunlight received and the consequent ultraviolet A exposure vary according to the month in the year, time of the day and geographical location of a place. Aim: The aim of this study is to determine irradiance of ultraviolet A in ambient sunlight and optimum exposure time for PUVAsol. Materials and Methods: This was an observational study carried out at Postgraduate Institute of Medical Education and Research, Chandigarh (30.7333°N, 76.7794°E), India using a photometer. Ultraviolet A irradiance was recorded at a fixed place at 10 AM, once weekly for a period of 12 months. Results: The irradiance of peak ultraviolet A was found to be 3.1 mW/cm2 in June 2016 while irradiance of 0.64 mW/cm2 was recorded in January 2017. The exposure time needed for therapeutic dose of 2 J/cm2 was 11 min 6 s in June 2016 while exposure time for achieving therapeutic dose of 2 J/cm2 was 52 min 5 s in January 2017. The duration of exposure was found to be significantly longer in the winter months. Limitation: The limitation of the study is not determining ultraviolet B radiation and infrared exposure. Other limitation of this study is that the irradiance was measured only at 10 am. This data cannot be used to determine irradiance at different time points in the day as the patient may expose himself/herself to sunlight anytime depending on his/her convenience. Conclusions: The study demonstrates the mean exposure time required for a given therapeutic dose of ultraviolet A in different months. The wide variation in ultraviolet A irradiance in natural sunlight over the year in different months also suggests that exposure times for PUVAsol should be based on the season and geographical location at the site of therapy and not based on uniform guidelines. 

Clinimetric analysis of recently applied quantitative tools in evaluation of vitiligo treatment
Nancy Wadea Mikhael, Hanan Hasan Sabry, Asmaa M El-Refaey, Rehab Mohammed Salem, Mahmoud Fawzi El-Gendy, Shaymaa Ahmed Farid

Indian Journal of Dermatology, Venereology, and Leprology 2019 85(5):466-474

Background: Vitiligo affects about 1% of the world's population, however, there is currently no universally used standardized measure to assess its response to treatment. Objective: To find the most effective technique for the quantitative assessment of therapeutic results in vitiligo patients. Materials and Methods: The study was performed in three stages: (1) Conducting an adapted Delphi survey to check current dermatologists' attitudes regarding the topic of study. (2) Conducting a pilot study that involves testing the selected digital image analysis software in the laboratory to validate future tasks. (3) The chief clinimetric study that implicates selecting actual vitiligo lesion models and evaluating them. Results: Regarding the surface area measuring techniques, the most accurate results were gained through the digital image analysis for surface area, followed by point-counting technique. The digital image analysis for color measurement was accurate and reliable in getting a percentage representation of color improvement within the vitiligo lesions, in response to therapy. Limitations: Many dermatologists lack understanding of basic concepts about imaging techniques. The study does not include a traditional assessment method such as vitiligo area scoring index. Conclusion: Our designated digital image analysis technique was able to efficiently assess the changes that occur both on surface area and the color of vitiligo lesions in response to therapy. 

Pulsed dye laser in the treatment of basal cell carcinoma: A single session versus two sessions – a randomized controlled trial
Naeim M Abd El-Naby, Nashwa Naeem El-Far, Hanan A Al-Shenawy, Sameh E Elshwadfy, Amira A Koura

Indian Journal of Dermatology, Venereology, and Leprology 2019 85(5):475-480

Background: Basal cell carcinoma is the most common form of skin cancer worldwide. It has a specialized microvasculature system that can be targeted by the pulsed dye laser using the theory of selective photothermolysis. Objective: To evaluate the efficacy and safety of single session versus two sessions of pulsed dye laser in the treatment of basal cell carcinoma. Methods: A total of 22 patients with basal cell carcinoma were collected in this randomized controlled trial. The patients were divided into two groups: Group I &#8211; 11 patients were treated by one session of pulsed dye laser, and Group II &#8211; 11 patients received two sessions of pulsed dye laser 2 weeks apart. The patients were assessed clinically and histopathologically after end of the treatment. Results: There was a significant improvement of basal cell carcinoma clinically and histopathologically. Maximal histological clearance rate was achieved in superficial basal cell carcinoma type, small-sized basal cell carcinoma <0.7 cm and in cases with strong inflammatory response after laser treatment. Treatment of basal cell carcinoma with two sessions of pulsed dye laser was more effective than one session treatment. Limitations: The small sample size of patients and the limited location of the lesions on the head compared with trunk and extremities. Also, the lack of adequate study power may prevent generalization of results. Conclusion: Pulsed dye laser proved to be a safe, effective and noninvasive modality for the treatment of basal cell carcinoma that can be used as a monotherapy in small-sized lesions. Also, it can be used to debulk large-sized lesions before surgery. 

Hemophagocytic lymphohistiocytosis: A rare, potentially fatal complication in subcutaneous panniculitis like T cell lymphoma
Chandra Sekhar Sirka, Swetalina Pradhan, Susama Patra, Somanath Padhi, Saroj Kumar DasMajumdar, Debjani Panda

Indian Journal of Dermatology, Venereology, and Leprology 2019 85(5):481-485

Subcutaneous panniculitis-like T cell lymphoma is a rare subtype of cutaneous lymphomas with distinct clinical, histological and immunophenotypic characteristics, as well as an indolent clinical course. Rarely, it may be complicated with hemophagocytic lymphohistiocytosis: a hyperinflammatory syndrome which, if not diagnosed early, carries a dismal outcome. In this article, we describe a case of subcutaneous panniculitis-like T cell lymphoma in a middle-aged female patient which was complicated with secondary hemophagocytic lymphohistiocytosis with a favorable outcome following etoposide-based therapy. The various histological mimics of subcutaneous panniculitis-like T cell lymphoma and the management options are also briefly discussed. 

A randomized controlled trial of topical benzoyl peroxide 2.5% gel with a low glycemic load diet versus topical benzoyl peroxide 2.5% gel with a normal diet in acne (grades 1-3)
G Pavithra, Gatha M Upadya, MS Rukmini

Indian Journal of Dermatology, Venereology, and Leprology 2019 85(5):486-490

Background: The improvement in insulin resistance and acne lesions on low glycemic load diets in various studies suggests that diet plays a significant role in acne pathogenesis. Aims: To compare the efficacy of a low glycemic load diet plus topical benzoyl peroxide 2.5&#37; gel with that of only topical benzoyl peroxide 2.5&#37; gel in grades 1, 2 and 3 of acne vulgaris. Methods: In a randomized controlled trial, 84 patients with grades 1, 2 and 3 acne vulgaris were divided into two groups, to receive a low glycemic load diet and no dietary intervention respectively. Acne lesions (face) were scored and graded at baseline and 4, 8 and 12 weeks. Homeostasis model assessment of insulin resistance and body mass index were measured during the first and last visits. Statistical analysis was done with Statistical Package for the Social Sciences, version 17.0. Results: Both groups showed significant reduction in acne counts at 12 weeks (P &#61; 0.931) with no statistically significant difference between the groups. The differences in body mass index and homeostasis model assessment of insulin resistance between the groups were statistically significant (P &#61; 0.0001). Group 1 showed reductions in body mass index and homeostasis model assessment of insulin resistance values at the end of the study, whereas group 2 did not. Limitations: Application of mild topical cleanser in both the groups might have contributed to the improvement in epidermal barrier function, and topical application of 2.5&#37; of benzoyl peroxide gel in both groups contributed to the improvement in acne counts. Conclusions: A low glycemic load diet did not result in any significant improvement in acne counts. 

"Melanocytic nevus", or is it?
Richa Pradeep Shindore, Prachi V Gole, Sunanda A Mahajan

Indian Journal of Dermatology, Venereology, and Leprology 2019 85(5):491-492

Advanced type 1 hyperoxaluria presenting as livedo racemosa in a patient with end-stage renal disease
Ignacio Torres-Navarro, Victor Garcia-Bustos, Rafael Botella-Estrada, Nohelia Rojas-Ferrer, Pedro Moral-Moral

Indian Journal of Dermatology, Venereology, and Leprology 2019 85(5):493-495

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