No abstract

Background:Dermatologic conditions have different presentation and management in pediatric age group from that in adult; this to be studied separately for statistical and population based analysis.Objective:To study the pattern of various dermatoses in infants and children in tertiary health care center in South Gujarat region.Materials and Methods:This is a prospective study; various dermatoses were studied in pediatric patients up to 14 years of age attending the Dermatology OPD of New Civil Hospital, Surat, Gujarat over a period of 12 months from June 2009 to June 2010. All patients were divided into four different study groups: <1 month (neonates), 1 month to 1 year, >1 to 6 years and 7 to 14 years.Results:There were 596 boys and 425 girls in total 1021 study populations. Majority of the skin conditions in neonates were erythema toxicum neonatorum (12.97%), scabies (9.92%), mongolian spot (9.16%), and seborrheic dermatitis (7.63%). In > 1 month to 14 years age group of children among infectious disorder, children were found to be affected most by scabies (24.49%), impetigo (5.96%), pyoderma (5.62%), molluscum contagiosum (5.39%), tinea capitis (4.49%), leprosy (2.02%), and viral warts (1.35%) while among non-infectious disorders, they were affected by atopic dermatitis (4.27%), pityriasis alba (4.16%), seborrheic dermatitis (3.60%), pityriasis rosea (3.15%), others (3.01%), phrynoderma (2.70%), lichen planus (2.58%), contact dermatitis (1.57%) and ichthyosis (1.45%).Conclusion:There is a need to emphasize on training the management of common pediatric dermatoses to dermatologists, general practitioners and pediatricians for early treatment.

We describe two fatal cases of low dose methotrexate (MTX) toxicity in patients with psoriasis, emphasizing the factors that exacerbate MTX toxicity. The first patient was a 50-year-old male of psoriasis on intermittent treatment with MTX. After a treatment-free period of six months, he had self-medication of MTX along with analgesic for joint pain for one week which followed ulceration of the lesions, bone marrow suppression, and eventually death. The second patient was a 37-year-old male of psoriasis, who has taken MTX one week earlier without prior investigations. He had painful ulcerated skin lesions and bone marrow suppression. On investigations, he showed high creatinine level and atrophied, nonfunctioning right kidney on ultrasonography. In spite of dialysis, he succumbed to death. MTX is safe and effective if monitored properly, but inadvertent use may lead to even death also. Prior workup and proper counseling regarding the drug interactions as well as self-medication should be enforced.

The optimization of the method of preparation of idoxuridine (IDU) liposomes by the reverse phase evaporation (REV) method was carried out by three variables at three levels (3(3)) factorial design. The three independent variables selected were volume of organic phase (x1), volume of aqueous phase (x2), and drug/phosphatidylcholine/cholesterol in molar ratio (x3). Twenty-seven batches of IDU liposomes were prepared by the REV method and subjected to evaluation for percentage drug entrapment (PDE), size, and size distribution. A reduced polynomial equation was derived by multiple regression of the data of PDE and the transformed values of the three independent variables. Three contour plots at fixed level of-- 1 (low), 0 (medium), and 1 (high) of major contributing variable (x3) were plotted between x1 and x2 at predetermined PDE to understand the physical meaning of independent variables. Liposomal gels were prepared by dispersing optimized IDU liposomes in 2%w/w and 5%w/w (HPMC) K4M gel bases so as to contain 1%w/w IDU (LIG-1 and LIG-2, respectively). The percentage of drug retention (PDR) studies of optimized batch 14 (Lipo-14) and LIG-1 and LIG-2 were carried out at three different storage conditions (2-8 degrees C, 25 +/- 2 degrees C, and 37 degrees C). A comparative diffusion study of LIG-1 and LIG-2 with PIG-1 and PIG-2 (1%w/w IDU with components of liposome dispersed in 2%w/w and 5%w/w HPMC K4M gel bases, respectively), respectively, through human cadaver skin was conducted. A comparative double blind clinical pilot study of optimized LIG-2 gel was carried out for eight weeks and compared with PIG-2 on 20 Herpes simplex patients (10 patients each for HSV-1 and HSV-2, divided into two groups each of 5 patients). Batch 14 (Lipo-14) was found to have maximum PDE of 74.4%. The PDR study showed maximum drug retention at 2-8 degrees C. A significant increase in PDR (p<0.05) was observed in LIG-1 and LIG-2 when compared with Lipo-14 at all the three temperatures. In the diffusion studies, a significant (p<0.05) flux reduction; 3.5 times in LIG-1 when compared with PIG-1 and 2.3 times in LIG-2 when compared with PIG-2 was observed. Approximately 2.2- and 2.5-fold increase in skin drug retention in LIG-1 and LIG-2, respectively, was determined. A double blind clinical study demonstrated an approximately 2.0- and 1.6-fold increase in average percentage improvement in healing of the lesions in patients suffering from HSV-1 and HSV-2 diseases, respectively, when treated with LIG-2 compared with PIG-2. However, complete removal of lesions was not observed. Local side effects such as itching, burning, inflammation in HSV-1 and HSV-2, and burning micturation in HSV-2 associated with the use of PIG-2 were reduced considerably with the use of LIG-2. The findings of this investigation establish the role of the derived equation and plotted contour plots in predicting the values of independent variables for preparation of IDU liposomes by the REV method. The study also demonstrated that IDU liposomal gels retain more drug whe...

In a purely clinical, unbiased study, 50 patients with verrucae plana were treated with dinitrochlorobenzene for 1-24 weeks, keeping half the lesions as controls. The results were statistically insignificant when the treated patients were compared to the control group.