@article {2025, title = {The Role of Cyclooxigenase-2 Inhibitor in Basal Cell Carcinoma: A Literature Review}, journal = {Pharmacognosy Journal}, volume = {15}, year = {2023}, month = {March 2023}, pages = {233-238}, type = {Review Article}, chapter = {233}, abstract = {

Basal cell carcinoma (BCC) is the most common skin malignancy worldwide. It has low mortality but can cause significant morbidity primarily due to local destruction. The incidence and associated cost are rising in recent years causing a burden in healthcare system. BCC incidence are continue to increase due to lack of effective chemopreventive option. Several risk factors are associated with the pathogenesis of BCC. One of the major risk factors of BCC is exposure to ultraviolet (UV) rays, hence the prevention strategy for this malignancy include avoidance of natural and artificial sources of UV radiation. However, these methods are still less than optimal in inhibiting the emergence of basal cell carcioma. In recent years, there is accumulating evidence that cyclooxygenase-2 (COX-2), may be involved in the pathogenesis of BCC. Several recent studies have shown that the use of cyclooxygenase-2 (COX-2) inhibitor drugs can prevent the development of nonmelanoma skin tumors including BCC. In this review, we described the potential of COX-2 inhibitors as chemoprevention for BCC.

}, keywords = {Basal cell carcinoma., Cancer, Chemoprevention, Cox-2 inhibitor, Cyclooxygenase, Skin malignancy}, doi = {10.5530/pj.2022.15.35}, author = {Maylita Sari and Kartika Misalina and M. Yulianto Listiawan} } @article {1835, title = {Uncover Itchy Leaves Ethnomedicine Usage: A Preliminary Study on Characterization and Bioactivity of Laportea Spp}, journal = {Pharmacognosy Journal}, volume = {14}, year = {2022}, month = {August 2022}, pages = {286-295}, type = {Original Article }, chapter = {286}, abstract = {

Background: Laportea decumana (Roxb.) Wedd. and Laportea stimulans (L.f.) Miq. (Urticaceae) or itchy leaves are endogenous plants from The Maluku Islands, Indonesia, which are used topically as analgesics by local people. Objective: As part of a preliminary investigation on the itchy leaves, this study was conducted to provide information on their macroscopic and microscopic characteristics, phytochemical profiles, and bioactivities according to the ethnomedicinal usages. Materials and Methods: The macroscopic examination was carried out on fresh leaves. The microscopic examination was carried out on leaf powder under a light microscope. The phytochemical analyses using TLC were conducted on those crude extracts and fractions. The bioactivity assays were conducted in vitro as Cox-2 inhibitory and DPPH radical scavenging activities. Results: reveal similar characteristics in the macroscopic and microscopic properties of both Laportea spp. leaves. Calcium oxalate crystals were observed in L. decumana but not found in L. stimulans. Both species have stomata with anisocytic type. More trichomes are found in the leaves of L. decumana, yet smaller and easily detachable. TLC analyses exhibited slightly different profiles. The crude extracts and fractions at 10 μg/ml showed similar inhibitory percentages on Cox-2. The DPPH scavenging activities of the crude extracts and fractions of L. decumana showed active moderate activity with an IC50 value \< 250 μg/ml, while those of L. stimulans showed moderate to weak potency with an IC50 value \< 500 μg/ml. Conclusion: Further exploration on Laportea spp. pharmacological activity is recommended to provide stronger evidence for its ethnomedicinal usage.

}, keywords = {Characterization, Cox-2 inhibitor, DPPH radical scavenging activity., Itchy leaves, Laportea decumana (Roxb.) Wedd, Laportea stimulans (L.f.) Gaud, Phytochemical profiles}, doi = {10.5530/pj.2022.14.98}, author = {Lukman La Basy and Djoko Santosa and Retno Murwanti and Triana Hertiani} }