Olive oil and clove oil-based nanoemulsion for topical delivery of terbinafine hydrochloride: in vitro and ex vivo evaluation.

In this article, formulation studies for terbinafine hydrochloride nanoemulsions, prepared by high-energy ultrasonication technique, are described. Pseudo-ternary phase diagram was constructed in order to find out the optimal ratios of oil and surfactant/co-solvent mixture for nanoemulsion production. Clove and olive oils were selected as oil phase. Based on the droplet size evaluation, maximum nanoemulsion region were determined for formulation development. Further characterization included polydispersity index (PDI), zeta potential, Fourier transform infrared (FT-IR) spectroscopy, morphology, pH, viscosity, refractive index, ex vivo skin permeation, skin irritation, and histopathological examination. Droplet sizes of optimized formulations were in colloidal range. PDI values below 0.35 indicated considerably homogeneous nanoemulsions. Zeta potential values were from 13.2 to 18.1 mV indicating good stability, which was also confirmed by dispersion stability studies. Ex vivo permeation studies revealed almost total skin permeation of terbinafine hydrochloride from the nanoemulsions (96-98%) in 6 hours whereas commercial product reached only 57% permeation at the same time. Maximum drug amounts were seen in epidermis and dermis layers. Skin irritation and histopathological examination demonstrated dermatologically safe formulations. In conclusion, olive oil and clove oil-based nanoemulsion systems have potential to serve as promising carriers for topical terbinafine hydrochloride delivery.

Persistent Mullerian Duct Syndrome.

Persistent Mullerian Duct Syndrome is extremely rare. Our patient, a 32 years old male, with history of orchidectomy presented with mass abdomen. He was initially diagnosed with seminoma and subsequently treated with chemotherapy. Biopsy of the mass showed germ cell tumour and MRI abdomen revealed female rudimentary organs confirmed on per operative and later on histopathology. Karyotype was 46 XY.

Coronary Artery Ectasia: Clinical and Angiographic Features.

OBJECTIVE: To investigate the clinical and angiographic characteristics of coronary artery ectasia (CAE) and its relation with the inflammatory marker, HsCRP. STUDY DESIGN: An observational study. PLACE AND DURATION OF STUDY: Rawalpindi Institute of Cardiology, Rawalpindi, from April 2015 till November 2016. METHODOLOGY: Eighty-one patients with CAE and 57 age matched patients with stenotic coronary artery disease (CAD), but without CAE, were included in the study. Clinical, angiographic, and laboratory data were documented. Chi-square test was used to compare coronary risk factors between two groups. T test was used to compare means between the groups. Analysis of variance was used to analyse HsCRP levels among various types of ectasia. Correlation analysis was used to study association of ectasia with different risk factors. RESULTS: Males were predominant in both with & without CAE. Hypertension, smoking and obesity were significantly more common among CAE patients than those without (60.5% vs. 52.6%, 56.8% vs. 43.9% and 80.2% vs. 14%, respectively). Diabetes was much less in CAE group (32.1% vs. 42.1%). HsCRP was higher in patients with CAE than those without and was significantly higher in patients with more extensive ectasia. Majority (65.4%) of CAE patients had significant CAD; whereas, only 7.4% had isolated CAE. Most common artery involved was RCA (70.4% of total) and most common pattern was single ectatic vessel. CONCLUSION: Obesity and smoking predispose to CAE, along with male sex and hypertension. While diabetes is negatively associated with CAE. HsCRP levels tend to be higher in ectasia patients, especially those with severe forms. Finally, CAE has a predilection for RCA.