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Liposomes and skin

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https://www.readbyqxmd.com/read/29441672/role-of-solid-lipid-nanoparticles-as-photoprotective-agents-in-cosmetics
#1
REVIEW
Jobin Jose, Gladyston Netto
BACKGROUND: Novel drug delivery systems have gained popularity since last two decades because of its advantages over conventional dosage forms. Effect of UV radiation on skin can cause either acute or chronic damage to our skin. Solid lipid nanoparticles (SLNs) were developed as novel carrier over the conventional carrier systems like liposomes and emulsions. The SLNs were selected as a carrier for the formulation because of its ability to protect the labile drug particles, the ability to make the drug release in a controlled manner, and occlusive property of the SLNs...
February 13, 2018: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29438132/successful-combination-therapy-of-liposomal-amphotericin-b-and-caspofungin-for-disseminated-fusariosis-in-a-pediatric-patient-with-acute-lymphoblastic-leukemia
#2
Suguru Uemura, Akihiro Tamura, Nobuyuki Yamamoto, Atsuro Saito, Sayaka Nakamura, Takahiro Fujiwara, Teppei Tahara, Aiko Kozaki, Kenji Kishimoto, Toshiaki Ishida, Daiichiro Hasegawa, Yasunori Muraosa, Katsuhiko Kamei, Yoshiyuki Kosaka
Disseminated fusariosis is a fatal infection in immunocompromised hosts. However, the optimal antifungal treatment for disseminated fusariosis has not yet been established. We report a case of disseminated fusariosis after chemotherapy for acute lymphoblastic leukemia, presenting with multiple skin, lung, and kidney lesions and cerebrospinal fluid invasion. The combination therapy of liposomal amphotericin B and caspofungin resolved disseminated fusariosis successfully.
February 12, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29430629/recent-advances-and-development-in-epidermal-and-dermal-drug-deposition-enhancement-technology
#3
Babar Iqbal, Javed Ali, Sanjula Baboota
Skin is the largest and easily accessible organ of the body. Increases in incidences of dermatological disorders, demand for drug targeting, and patient compliance have increased the popularity of topical drug delivery amongst the people. However, drug delivery across the skin is still a challenge for researchers because permeation of maximum drugs is hindered by the upper layer of the epidermis (stratum corneum). Several approaches like use of chemical permeation enhancers and physical methods such as sonophoresis, iontophoresis, electroporation, microneedles, etc...
February 12, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/29425769/combined-use-of-nanocarriers-and-physical-methods-for-percutaneous-penetration-enhancement
#4
Nina Dragicevic, Howard Maibach
Dermal and transdermal drug delivery (due to its non-invasiveness, avoidance of the first-pass metabolism, controlling the rate of drug input over a prolonged time, etc.) have gained significant acceptance. Several methods are employed to overcome the permeability barrier of the skin, improving drug penetration into/through skin. Among chemical penetration enhancement methods, nanocarriers have been extensively studied. When applied alone, nanocarriers mostly deliver drugs to skin and can be used to treat skin diseases...
February 6, 2018: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/29424815/successful-treatment-of-disseminated-cutaneous-leishmaniasis-with-liposomal-amphotericin-b-and-miltefosine-in-an-eight-year-old-girl
#5
Seyedeh Sedigheh Hamzavi, Anahita Sanaei Dashti, Mohammad Rahim Kadivar, Gholamreza Pouladfar, Bahman Pourabbas
This case report presents an 8-year-old girl, from Fars province in Iran, diagnosed with cutaneous leishmaniasis in the form of multiple nodular, ulcerative and crusted lesions disseminated on the face, trunk and extremities. The result of direct smear of ulcers was positive for Leishmania parasite. The patient had no immunodeficiency or relevant family history making her susceptible for disseminated cutaneous leishmaniasis. The skin lesions failed to respond to multiple treatment courses of meglumine antimoniate or amphotericin B but were successfully treated with simultaneous miltefosine and liposomal amphotericin B...
March 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29421218/the-safety-and-tolerability-of-topically-delivered-kynurenic-acid-in-humans-a-phase-1-randomized-double-blind-clinical-trial
#6
A Papp, R Hartwell, M Evans, A Ghahary
Scarring is a consequence of biological tissue repair following trauma. Currently there are no generally agreed ways to prevent scarring. Recently, kynurenic acid has shown to be a potent modulator of extracellular matrix deposition and remodeling. Kynurenic acid can reduce matrix deposition and other fundamental characteristics of fibrosis in vitro and in vivo. Specifically, kynurenic acid has shown to increase MMP-1 activity and subsequently reduce collagen deposition in a rabbit ear scar model. In the current study kynurenic acid cream in different concentrations was topically applied on healthy skin on volunteers to assess skin reactions and skin sensitivity in both acute and chronic application settings...
February 5, 2018: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29410208/trends-in-insect-repellent-formulations-a-review
#7
REVIEW
Melanie Tavares, Márcio Robert Mattos da Silva, Luciana Betzler de Oliveira de Siqueira, Raphaela Aparecida Schuenck Rodrigues, Lolita Bodjolle-d'Almeira, Elisabete Pereira Dos Santos, Eduardo Ricci-Junior
The use of natural and synthetic repellents, marketed in different pharmaceutical forms, is growing in the world due to the emerging vector-borne viral diseases as Dengue, Zika, Chikungunya, Yellow Fever and Malaria. The choice of the ideal formulation will depend on a series of factors to be analyzed: type of repellent active (natural or synthetic), pharmaceutical forms (spray, lotion, cream, gel), action time duration (short or long), environment of exposure and the user (adult, pregnant women, children, newborn)...
February 2, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29401722/idebenone-novel-strategies-to-improve-its-systemic-and-local-efficacy
#8
REVIEW
Lucia Montenegro, Rita Turnaturi, Carmela Parenti, Lorella Pasquinucci
The key role of antioxidants in treating and preventing many systemic and topical diseases is well recognized. One of the most potent antioxidants available for pharmaceutical and cosmetic use is Idebenone (IDE), a synthetic analogue of Coenzyme Q10. Unfortunately, IDE's unfavorable physicochemical properties such as poor water solubility and high lipophilicity impair its bioavailability after oral and topical administration and prevent its parenteral use. In recent decades, many strategies have been proposed to improve IDE effectiveness in the treatment of neurodegenerative diseases and skin disorders...
February 5, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29376759/estrogen-receptor-mediated-liposomal-drug-delivery-for-treating-melanoma
#9
Anirban Ganguly, Hari Krishna Reddy Rachamalla, Dwaipayan Bhattacharya, Keerti Bhamidipati, Abhishek Pal, Halley Gora Ravuri, Sumana Chakrabarti, Susanta Sekhar Adhikari, Rajkumar Banerjee
Function of steroid hormone estrogen that transactivates estrogen receptor (ER) is expressed in multiple organs. Except for malignancies of gynecological organs, ER remains largely unutilized as a target to treat cancers of ER-expressing brain, prostate, skin etc. We have previously developed estrogen targeting cationic lipid molecule (ES-C10), which showed targeted killing of ER+ breast and skin cancer cells. In this study, we explored the targeting ability of ES-C10 as a ligand as well as its additive killing effect (if any), when incorporated in two different liposomes (DCME and DCDE), carrying two anticancer molecules MCIS3 and DocetaxelTM respectively...
January 29, 2018: Journal of Drug Targeting
https://www.readbyqxmd.com/read/29375852/liposomal-bupivacaine-for-the-management-of-postsurgical-donor-site-pain-in-patients-with-burn-injuries-a-case-series-from-two-institutions
#10
Sharmila Dissanaike, Jayne McCauley, Carlo Alphonso
Donor site pain associated with skin graft procedures is frequently intense and difficult to treat. Liposomal bupivacaine, a prolonged-release local anesthetic indicated for single-dose administration to produce postsurgical analgesia, may be a viable option in managing donor site pain.
January 2018: Clinical Case Reports
https://www.readbyqxmd.com/read/29374464/disseminated-cryptococcosis-presenting-initially-as-lower-limb-cellulitis-in-a-renal-transplant-recipient-a-case-report
#11
Katrina Chakradeo, Y Y Paul Chia, Cheng Liu, David W Mudge, Janath De Silva
BACKGROUND: Cellulitis is an unusual presentation of disseminated cryptococcosis, a serious infection seen predominantly in immunocompromised hosts. Disseminated cryptococcosis carries significant morbidity for transplant recipients, especially of the pulmonary and central nervous systems, and carries a high mortality risk. CASE PRESENTATION: We report a 59-year-old renal transplant recipient who presented with bilateral lower leg cellulitis without other symptoms or signs...
January 27, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29373264/disseminated-fusariosis-emerged-from-prolonged-local-genital-infection-after-cord-blood-transplantation
#12
Kohei Okada, Tomoyuki Endo, Daigo Hashimoto, Tomoyuki Saga, Takahide Ara, Reiki Ogasawara, Atsushi Yasumoto, Makoto Ibata, Mutsumi Takahata, Akio Shigematsu, Takeshi Kondo, Yasunori Muraosa, Toshifumi Nomura, Hiromi Kanno-Okada, Satoshi Hashino, Shinya Tanaka, Katsuhiko Kamei, Takanori Teshima
Disseminated fusariosis (DF) is a rare life threatening fungal infection in immunocompromised hosts. We herein report a case of a fatal DF mimicking varicella zoster virus (VZV) infection that was emerged from a localized genital infection during cord blood transplantation (CBT) in a patient with severe aplastic anemia (SAA). The patient developed an ulcer following small painful vesicles mimics herpes simplex virus infection (HSV) on the glans penis before CBT, but a Fusarium species was identified. Despite administration of voriconazole, liposomal amphotericin B and granulocyte transfusion, the lesion was extended to extensive skin looked like VZV infection and the patients died after CBT...
January 16, 2018: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29366416/finasteride-topical-delivery-systems-for-androgenetic-alopecia
#13
Muhammad Zia Ullah Khan, Shujaat Ali Khan, Muhammad Ubaid, Aamna Shah, Rozina Kousar, Ghulam Murtaza
Androgenetic alopecia, generally recognized as male pattern baldness, is a gradually developing medical and physiological change, which is manifested by continuous hair-loss from scalp. Finasteride (4-aza-3-oxosteroid) is a potent anti-baldness compound that selectively and competitively inhibits the 5α-reductase isoenzymes. Prolonged oral use of finasteride leads to the emergence of sexual disorders including decrease in libido, gynecomastia, erectile dysfunction, ejaculation disorder, orgasm disorders and mood disturbances...
January 23, 2018: Current Drug Delivery
https://www.readbyqxmd.com/read/29363541/vitamin-a-coupled-liposomes-containing-sirna-against-hsp47-ameliorate-skin-fibrosis-in-chronic-graft-versus-host-disease
#14
Tomohiro Yamakawa, Hiroyuki Ohigashi, Daigo Hashimoto, Eiko Hayase, Shuichiro Takahashi, Miyono Miyazaki, Kenjiro Minomi, Masahiro Onozawa, Yoshiro Niitsu, Takanori Teshima
Chronic graft-versus-host disease (GVHD) after allogeneic hematopoietic stem cell transplantation (SCT) is characterized by multiple-organ fibrosis, profoundly affects quality of life of transplant survivors. Heat shock protein 47 (HSP47), a collagen specific molecular chaperone, plays a critical role in collagen synthesis in myofibroblasts. We explored the role of HSP47 in fibrotic process of cutaneous chronic GVHD in mice. Immunohistochemical analysis showed massive fibrosis with elevated amount of collagen deposit and accumulation of F4/80+ macrophages as well as myofibroblasts expressing HSP47 and retinol binding protein 1 in the skin after allogeneic SCT...
January 23, 2018: Blood
https://www.readbyqxmd.com/read/29336262/ethosomes-as-novel-vesicular-carrier-an-overview-of-the-principle-preparation-and-its-applications
#15
Sanjoy Kumar Das, Soumalya Chakraborty, Chhandita Roy, Rajan Rajabalaya, Amal Widaad Mohaimin, Jasmina Khanam, Arunabha Nanda, Sheba R David
BACKGROUND: In the study of lipid vesicular carriers in permeation enhancement of drug molecules across skin after the success story of liposomes, ethosomes are a recent addition. There are a number of published reviews but still, there is a lack of reviews representing various aspects in a systematic way with a detailed description of current research works. This review serves to fill this deficiency along with a special emphasize on its preparation methods and application. METHODS: Information was collected from previously published literatures which were represented after analysis in terms of various aspects such as principles, composition, preparation, mechanism of penetration, modified forms, characterization, marketed preparation and its application...
January 15, 2018: Current Drug Delivery
https://www.readbyqxmd.com/read/29335541/modulation-of-uvb-induced-carcinogenesis-by-activation-of-alternative-dna-repair-pathways
#16
Yan Sha, Vladimir Vartanian, Nichole Owen, Stephanie J Mengden Koon, Marcus J Calkins, Courtney S Thompson, Zahra Mirafzali, Sara Mir, Lisa E Goldsmith, Huaping He, Chun Luo, Scott M Brown, Paul W Doetsch, Andy Kaempf, Jeong Y Lim, Amanda K McCullough, R Stephen Lloyd
The molecular basis for ultraviolet (UV) light-induced nonmelanoma and melanoma skin cancers centers on cumulative genomic instability caused by inefficient DNA repair of dipyrimidine photoproducts. Inefficient DNA repair and subsequent translesion replication past these DNA lesions generate distinct molecular signatures of tandem CC to TT and C to T transitions at dipyrimidine sites. Since previous efforts to develop experimental strategies to enhance the repair capacity of basal keratinocytes have been limited, we have engineered the N-terminally truncated form (Δ228) UV endonuclease (UVDE) from Schizosaccharomyces pombe to include a TAT cell-penetrating peptide sequence with or without a nuclear localization signal (NLS): UVDE-TAT and UVDE-NLS-TAT...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29318970/physicochemical-characterization-and-skin-permeation-of-cationic-transfersomes-containing-the-synthetic-peptide-pnpp-19
#17
Flavia De Marco Almeida, Carolina Nunes Silva, Savia Caldeira de Araujo Lopes, Daniel Moreira Santos, Fernanda Silva Torres, Felipe Lima Cardoso, Patricia Massara Martinelli, Elizabeth Ribeiro da Silva, Maria Elena de Lima, Lucas Antonio Ferreira Miranda, Monica Cristina Oliveira
BACKGROUND: PnPP-19 is a 19-amino-acid synthetic peptide previously described as a novel drug for the treatment of erectile dysfunction. OBJECTIVE: The aim of this work was to evaluate the physicochemical properties of cationic transfersomes containing PnPP-19 and the skin permeation of free PnPP-19 and PnPP-19-loaded transfersomes. METHOD: Three different liposomal preparation methods were evaluated. Cationic transfersomes contained egg phosphatidyl choline: stearylamine (9:1 w/w) and Tween 20 (84...
January 8, 2018: Current Drug Delivery
https://www.readbyqxmd.com/read/29288359/nano-formulation-for-topical-treatment-of-precancerous-lesions-skin-penetration-in-vitro-and-in-vivo-toxicological-evaluation
#18
Maria Natalia Calienni, Carlos Facundo Temprana, Maria Jimena Prieto, Donatella Paolino, Massimo Fresta, Ayse Begum Tekinay, Silvia Del Valle Alonso, Jorge Montanari
With the aim of improving the topical delivery of the antineoplastic drug 5-fluorouracil (5FU), it was loaded into ultradeformable liposomes composed of soy phosphatidylcholine and sodium cholate (UDL-5FU). The liposome populations had a mean size of 70 nm without significant changes in 56 days, and the ultradeformable formulations were up to 324-fold more elastic than conventional liposomes. The interaction between 5FU and the liposomal membrane was studied by three methods, and also release profile was obtained...
December 30, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/29246745/effectiveness-of-topical-gel-of-medical-leech-hirudo-medicinalis-saliva-extract-on-patients-with-knee-osteoarthritis-a-randomized-clinical-trial
#19
Amir Shakouri, Nasim Adljouy, Sanaz Balkani, Maryam Mohamadi, Hamed Hamishehkar, Jalal Abdolalizadeh, Seyed Kazem Shakouri
Leech saliva extract (LSE) in the liposome-based gel was used as a supplementary treatment to relief the signs and symptoms of osteoarthritis (OA). The saliva of medical leech was extracted and nano liposomes were used to formulate the supplement to enhance skin absorption. A clinical trial was designed to evaluate the therapeutic effects of LSE liposomal gel. Lenquesne and VAS questionnaires were used as indexes of this supplement therapy efficacy for 30 days. Questionnaires analysis showed that after one-month administration of LSE liposomal gel, patients' pain was relieved approximately up to 50%; also, due to reduction in joint inflammation and stiffness, the range of motion was increased and the patients' quality of life was enhanced (p < 0...
December 6, 2017: Complementary Therapies in Clinical Practice
https://www.readbyqxmd.com/read/29246259/macrophages-in-trigeminal-ganglion-contribute-to-ectopic-mechanical-hypersensitivity-following-inferior-alveolar-nerve-injury-in-rats
#20
Dulguun Batbold, Masamichi Shinoda, Kuniya Honda, Akihiko Furukawa, Momoko Koizumi, Ryuta Akasaka, Satoshi Yamaguchi, Koichi Iwata
BACKGROUND: Accidental mandibular nerve injury may occur during tooth extraction or implant procedures, causing ectopic orofacial pain. The exact mechanisms underlying ectopic orofacial pain following mandibular nerve injury is still unknown. Here, we investigated the role of macrophages and tumor necrosis factor alpha (TNFα) in the trigeminal ganglion (TG) in ectopic orofacial pain following inferior alveolar nerve transection (IANX). METHODS: IANX was performed and the mechanical head-withdrawal threshold (MHWT) in the whisker pad skin ipsilateral to IANX was measured for 15 days...
December 16, 2017: Journal of Neuroinflammation
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