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IDJP (Indonesian Journal of Pharmaceutics)

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Published by Universitas Padjadjaran

ISSN : - EISSN : 25978748 DOI : -

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The Indonesian Journal of Pharmaceutics (IdJP) is an established international journal for pharmaceutical scientists concerned in all fields of pharmaceutical sciences, including pharmaceutical preformulation, formulation, manufacturing technologies, drug delivery systems, biopharmaceutics, and pharmacokinetics for drugs, vaccines and biologicals. IdJP also includes pharmaceutical engineering and industrial pharmacy topics.

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Articles 5 Documents

Search results for , issue "Vol 1, Issue 1, Jan - April 2019" : 5 Documents clear

Preparation and Characterization of Glucosamine Nanoparticle by Ionic Gelation Method Using Chitosan and Alginate Yuli Agung Prasetyo; Taofik Rusdiana; Marline Abdassah
Indonesian Journal of Pharmaceutics Vol 1, Issue 1, Jan - April 2019
Publisher : Universitas Padjadjaran (Unpad)

Osteoarthritis is a chronic degenerative disease of the joints that usually treated by NSAID drugs in the long term leading to cardiovascular and gastrointestinal disorders. Glucosamine is a precursor in the formation of progression of joint which have not a significantly side effect. The problem in glucosamine administration occured when it is administered through the oral route resulting in first pass metabolism, while when it is administered via intavena route resulting in insulin resistance. Those problems can be solved by developing glucosamine into nanoglucosamine in order to increase the enzymatic stability which will protect the active ingredient from diminishing by the first pass effect hence the dose can be reduced, consequenlty it will reduce the insulin resistance, and increase the permeation. In this study, the nanoparticles of glucosamine with chitosan polymer and crosslinker alginate was prepared by the ionic gelation method with the principle of continued cross forming polyelectrolyte complexes. This study started from preformulation such as solubility and identify study by FTIR, then the formulations of chitosan: glucosamine: alginate = 5:1:1 (volume ratio) with the variation of concentration in the FI (chitosan: glucosamine: alginate = 0.08 %: 0.1%: 0.08%) and FII (chitosan: glucosamine: alginate = 0.1%: 0.1%: 0.08%). Results of nanoparticle characterization by particle size analyzer in the FI showed the better formula indicating a foggy coloid, no precipitation, the pH was 2.90±0.05, and the percent transmittance was 99.35%. The distribution of particle size, polydispersity index, and zeta potential for the formula I were 76.0 ± 21.8 nm; 0.300; and -0.30 mV, respectively. It could be concluded that the nanoparticle system of glucosamine can be better prepared from the 0.08% of chitosan, 0.1% of glucosamine and 0.08% of alginate.Keywords: alginate, chitosan, ionic gelation method, glucosamine nanoparticle

Exploration of Proteins Involved in Acquisition of Resistance to Cetuximab Hironori Nakamura; Ayumu Nagamine; Hideaki Yashima; Takuya Araki; Koujirou Yamamoto
Indonesian Journal of Pharmaceutics Vol 1, Issue 1, Jan - April 2019
Publisher : Universitas Padjadjaran (Unpad)

Anti-epidermal growth factor receptor (EGFR) monoclonal antibodies (Mabs) show high efficacy in about 50% of colorectal cancer (CRC) patients with wild-type KRAS. However, < 20% of patients with KRAS wild-type CRC have continued therapeutic effects with these agents, and acquired resistance to treatment has become a serious clinical problem. In this study, to clarify the factors related to acquisition of resistance to cetuximab (Cmab) and establish countermeasures against such acquired resistance, we conducted a comprehensive protein analysis via a proteomics approach using acquired resistance cell lines derived from Cmab-sensitive CRC cell lines and original cell lines. Cmab-acquired resistance cell lines were generated by continuous exposure of SW48 and C99 cell lines to Cmab. Expression of dCK and zinc finger and BTB domain-containing protein 41 (ZBTB41) increased more than 10-fold, and dual specificity protein phosphatase 3 (DUS3) expression decreased by less than 1/10 with acquisition of resistance to Cmab in both C99 and SW48 cell lines. Because overexpression of dCK is known as a positive indicator of efficacy of nucleoside analogs such as cytarabine or gemcitabine, it is considered that nucleoside analogs activated by dCK may be useful agents in treatment of cancers with acquired Cmab-resistance. In the future, we need to clarify the usefulness of these drugs for the treatment of Cmab resistant CRC and to assess the possibility of restoration of Cmab sensitivity by regulation of ZBTB41 and DUS3 expression.Keyword : cetuximab, colorectal cancer, acquired resistance, protein, dCK, ZBTB41

The Impact of Sunitinib N-oxide as a Photodegradation Product of Sunitinib Miki Takenaka; Yuta Takahashi; Hideaki Yashima; Takuya Araki; Koujirou Yamamoto
Indonesian Journal of Pharmaceutics Vol 1, Issue 1, Jan - April 2019
Publisher : Universitas Padjadjaran (Unpad)

During treatment with sunitinib, dosage adjustment according to the monitored blood concentration of sunitinib and SU12662 is considered useful. On the other hand, the appearance of hand-foot skin reaction (HFSR) cannot be explained by blood sunitinib concentration alone. Although light exposure greatly affects skin disorders associated with medication use, the photodegradation of sunitinib has not been studied in detail. Here, we investigated the photodegradation products of sunitinib using LC-MS and examined cytotoxic activities using an MTT assay. N-desethyl sunitinib and sunitinib N-oxide were identified as photodegradation products, and their concentrations increased under irradiation in a time-dependent manner. Although the IC50 value of N-desethyl sunitinib in the HEK 293 cell line (11.6 µmol/L) was similar to that of sunitinib (8.6 µmol/L), the IC50 value of sunitinib N-oxide (121.9 µmol/L) was over 10 times higher than that of sunitinib. In addition, N-desethyl sunitinib and sunitinib N-oxide were found in blood obtained from a patient taking sunitinib (24.7 and 2.3 ng/mL, respectively). Because the appearance of adverse drug reactions associated with sunitinib can be reduced by using α-tocopherol nicotinate, which has a strong antioxidant effect, we believe that sunitinib N-oxide might strongly promote the development of HFSR.Keyword : sunitinib, sunitinib N-oxide, photodegradation product, light

Formulation and Evaluation of Ketoprofen Gel Preparations, Sesami Oil Soybean Oil and Oleic Acid as Enhancers Rugun Clara Samosir; Iyan Sopyan; Dolih Gozali
Indonesian Journal of Pharmaceutics Vol 1, Issue 1, Jan - April 2019
Publisher : Universitas Padjadjaran (Unpad)

Permeation is a measurable profile in drug penetration in skin. Adding increasing permeation substance (enhancer) in drug formulation is an important thing in pharmaceutical and toxicology in nowadays. The purpose of this research was to evaluate the effect of sesame oil, soybean oil, and oleic acid as enhancer in ketoprofen gel permeation. Six formula were prepared by varying concentration of sesame oil, soybean oil, and oleic acid respectively 5% and 10% and one blank, without enhancer. Permeation test was evaluated by in vitro permeation test using Franz diffusion cell method and shed snake skin of reticulated python as a membrane. Permeation test were carried out for 6 hours. The result showed that sesame oil, soybean oil, and oleic acid were able to increase ketoprofen permeation. B1 formula that contain 5% sesame oil had greatest percent permeation after 6 hours is 5.913%, while blank that contain no enhancer is 0.623%.Keywords: ketoprofen, permeation, enhancer, soybean oil, sesame oil, oleic acid.

Influence of Emollient on the Preparation and stability of Sodiun Ascorbyl Phospate Cream Yanni Dhiani Mardhiani; Deny Puriyani Azhari; Silviana Wulansari
Indonesian Journal of Pharmaceutics Vol 1, Issue 1, Jan - April 2019
Publisher : Universitas Padjadjaran (Unpad)

As a type of cosmetic preparation products, cream dosage form is widely used with the addition of active substances having antioxidant activities, such as vitamin C and its derivatives. Sodium ascorbyl phosphate (SAP) can be used in topical formulation due to its more stable properties than ascorbic acid. However, it is difficult to deliver SAP into the dermis in a suficient dose. To overcome the problem, occasionally we can add a penetration enhancer. In some literature, emollients that often added in cosmetic preparations also have another effect as a penetration enhancer. The purpose of this research was to observe wether emollient addition could influence the penetration of SAP in the cream formulation or not. SAP was formulated into four formulations with three different emollients: dimethicone (F1), capric triglyceride (F2), and isopropyl myristate (F3) and a formulation without the addition of emollients (F4). The diffusion test was performed by Franz's diffusion cell method using male wistar rat’s abdominal membrane as a standard model of the skin barrier. The result of stability test showed that SAP cream was stable at room temperature but unstable on freeze thaw condition described by significant different values for all formulas. Nonetheless, the diffusion test showed that F2 with the capric triglyceride as emollient had the highest ability to pass SAP through the membrane, followed by isopropyl miristate. We concluded that emollient addition could influence the penetration of the cream of SAP.Keywords: vitamin c, ascorbic acid, sodium ascorbyl phospate, emollient, penetration enhancer

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Kota bandung,

Jawa barat

INDONESIA