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https://www.readbyqxmd.com/read/28101017/efficacy-of-a-film-forming-medical-device-containing-piroxicam-and-sun-filters-in-the-treatment-of-multiple-actinic-keratosis-lesions-in-a-subject-with-a-history-of-kaposi-sarcoma
#1
Elisabetta Scotti, Salvatore Deledda, Massimo Milani
Actinic keratosis (AK) is considered a premalignant form of skin cancer due to chronic sun exposure. In addition, human papilloma virus (HPV) has been advocated a role in the pathogenesis of this clinical condition. HPV proteins (mainly E6 and E7) seem to act synergistically with ultraviolet (UV) radiation in reducing the defensive mechanisms of keratinocyte apoptosis after UV damage. Data regarding the involvement of other viruses, i.e. human herpes viruses (HHV), in the pathogenesis of AK are so far controversial...
September 2016: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28095557/the-photodynamic-therapy-experience-of-a-high-volume-laser-and-dermatologic-surgery-center
#2
David E Orbuch, Lauren Penn, Bradley S Bloom, Jeremy A Brauer, Daniel B Shin, Joshua Greenbaum, Leonard J Bernstein, Elliot T Weiss, Robert T Anolik, Roy G Geronemus
BACKGROUND: Photodynamic therapy (PDT) is an FDA approved treatment for actinic keratoses (AK's) although multiple off-label indi- cations are reported. Despite frequent use for AK's, no clear consensus exists regarding protocols for overall treatment parameters. METHODS: Retrospective chart review of 1,491 subjects who underwent PDT between 2007 and 2011 at a high volume laser surgery center. Demographic information, clinical history, treatment data, and subsequent diagnosis of skin cancers were recorded...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095373/comparison-of-lesion-by-lesion-and-field-photodynamic-therapy-in-the-prevention-of-actinic-keratoses-a-randomized-split-face-single-blind-pilot-study
#3
Inge Seubring, Joannes M M Groenewoud, Marie-Jeanne P Gerritsen
BACKGROUND: Actinic keratoses (AKs) are often treated separately, lesion by lesion. However, in the past years, AKs have been described as a field disease and not limited to single clinically apparent lesions. Treatment should therefore target an area of field change which may reduce the risk of development of further AKs, second tumours, and local recurrence. OBJECTIVE: The primary objective was to determine the number of new lesions at 9 months after methyl aminolevulinate photodynamic therapy (MAL-PDT)...
January 18, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28093604/pretreatment-with-5-fluorouracil-cream-enhances-the-efficacy-of-daylight-mediated-photodynamic-therapy-for-actinic-keratosis
#4
Christoffer V Nissen, Ida Marie Heerfordt, Stine R Wiegell, Carsten S Mikkelsen, Hans C Wulf
The efficacy of photodynamic therapy (PDT) with methyl aminolevulinate is reduced when treating actinic keratosis (AK) on the extremities in comparison with the face and scalp. Studies indicate that PDT efficacy can be improved by combining PDT with other treatment modalities. This randomized intra-individual study investigated whether pretreatment with topical 5% 5-fluorouracil (5-FU) enhanced the treatment efficacy of daylight-mediated PDT in 24 patients with AKs on the hands. One hand of each patient was given 7 days of pretreatment with 5-FU twice daily before daylight-PDT, whereas the other hand was treated with daylight-PDT alone...
January 17, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28079686/number-of-bacteria-and-time-of-coincubation-with-bacteria-required-for-the-development-of-acanthamoeba-keratitis
#5
Hayate Nakagawa, Takaaki Hattori, Naohito Koike, Tomoko Ehara, Akitomo Narimatsu, Shigeto Kumakura, Tetsuya Matsumoto, Hiroshi Goto
PURPOSE: We hypothesized that bacteria may be a factor contributing to the development of Acanthamoeba keratitis (AK). We investigated interactions between Acanthamoeba and Pseudomonas aeruginosa for the development of keratitis in rabbit corneas. METHODS: Acanthamoeba castellanii (ATCC50492) and P. aeruginosa (PAO-1) were used. Two densities of P. aeruginosa (high, 1 × 10/mL; low, 3 × 10/mL) and 2 durations of coincubation (long, 6 h; short, 2 h) of Acanthamoeba with 1 × 10/mL of P...
January 11, 2017: Cornea
https://www.readbyqxmd.com/read/28078678/a-seamless-phase-i-ii-dose-finding-trial-assessing-ingenol-disoxate-leo-43204-for-field-treatment-of-actinic-keratosis-on-the-scalp
#6
J Weiss, M Ulrich, M Bukhalo, M L Østerdal, B Bang, C W Hanke
BACKGROUND: Actinic keratosis (AK) is a common sun-related skin condition, which can progress to squamous cell carcinoma and occur in cancerised fields. OBJECTIVES: This Phase I/II trial investigated the safety and efficacy of ingenol disoxate as topical field therapy for patients with AK on the balding scalp. METHODS: Part 1 was a Phase I, open-label, dose-escalation trial investigating up to 6 doses of ingenol disoxate to determine the maximum tolerated dose (MTD)...
January 12, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28074457/the-acute-effects-of-thymoquinone-on-acute-peripheral-nerve-injury-an-experimental-study
#7
İsmail Gülşen, Hakan Ak, Mikail Kara, Abdulsemat Gökalp, Veysel Akyol, Ömer Faruk Koçak, Murat Çetin Rağbetli
BACKGROUND: The purpose of this study was to evaluate the acute effects of thymoquinone (TQ) on acute nerve injury. METHODS: A rat model of crush injury of the sciatic nerve was used. Animals were divided into 3 groups: control, trauma, and TQ treatment groups (n=6 per group). Seven days after injury, sciatic nerve specimens were obtained from the site of the injury and analyzed histologically and stereologically. Axon diameter, myelin thickness, and axon density were measured...
November 2016: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28053616/sirtuin-2-inhibition-affects-hippocampal-functions-and-sodium-butyrate-ameliorates-the-reduction-in-novel-object-memory-cell-proliferation-and-neuroblast-differentiation
#8
Hyo Young Jung, Dae Young Yoo, Jong Whi Kim, Dae Won Kim, Jung Hoon Choi, Jin Young Chung, Moo-Ho Won, Yeo Sung Yoon, In Koo Hwang
We investigated the effects of the sirtuin-2 (SIRT2) inhibitor AK-7 on novel object memory, cell proliferation, and neuroblast differentiation in the dentate gyrus. In addition, we also observed the relationships with sodium butyrate, a histone deacetylase inhibitor, on the hippocampal functions. To investigate the effects of AK-7 on hippocampal functions, 10-week-old C57BL/6 mice were daily injected intraperitoneally with 20 mg/kg AK-7 alone or in combination with subcutaneous administration of 300 mg/kg sodium butyrate, a histone deacetylase inhibitor, for 21 days...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28012181/randomized-controlled-trial-comparing-35-trichloroacetic-acid-peel-and-5-aminolevulinic-acid-photodynamic-therapy-for-the-treatment-of-multiple-actinic-keratosis
#9
G Holzer, A Pinkowicz, S Radakovic, J B Schmidt, A Tanew
BACKGROUND: Photodynamic therapy (PDT) and chemical peels with trichloroacetic acid (TCA) can be applied to larger skin areas and thus are suitable treatment options for patients with multiple actinic keratosis (AK). Despite its long use TCA has, however, only been investigated rarely in this indication. OBJECTIVES: This randomized, observer-blinded, intrapatient comparison study sought to investigate the efficacy and safety of 35% TCA versus 20% aminolevulinic acid PDT (ALA PDT) in patients with extensive field cancerisation and multiple AK in the face or on the scalp...
December 23, 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/28008278/acne-keloidalis-nuchae-prevalence-impact-and-management-challenges
#10
REVIEW
Adebola Ogunbiyi
Acne keloidalis nuchae (AKN) also known as folliculitis keloidalis nuchae (FKN) is a chronic form of scarring folliculitis seen mostly in men of African descent. The term AKN is commonly used even though the condition is not a keloid, and the affected individuals do not have a tendency to develop keloids in other areas of the body. It is seen in post pubertal men and is rare after the age of 55 years. A few cases have been reported in females. which has been classified as a primary cicatricial alopecia since the exact cause of acne keloidalis (AK) remains unknown...
2016: Clinical, Cosmetic and Investigational Dermatology
https://www.readbyqxmd.com/read/28007674/the-current-role-of-in-vivo-reflectance-confocal-microscopy-within-the-continuum-of-actinic-keratosis-and-squamous-cell-carcinoma-a-systematic-review
#11
Kim P Nguyen, Malou Peppelman, Lisa Hoogedoorn, Piet E J Van Erp, Marie-Jeanne P Gerritsen
BACKGROUND: Clinical differentiation between actinic keratosis (AK), squamous cell carcinoma (SCC) in situ, and invasive SCC and its variants may be difficult. Reflectance confocal microscopy (RCM) is a non-invasive technique for in vivo skin imaging. OBJECTIVES: To explicate the diagnostic and monitoring use of RCM within the spectrum of AK and SCC, and evaluate the accuracy of RCM for these diagnoses relative to histopathology. MATERIALS & METHODS: A systematic literature search was performed in PubMed, EMBASE, the Cochrane Library, and Web of Science databases...
December 1, 2016: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28002105/variables-in-cryosurgery-technique-associated-with-clearance-of-actinic-keratosis
#12
Brian Berman, Arsalan Qazi Shabbir, Tanya MacNeil, Kim Mark Knudsen
BACKGROUND: Cryosurgery is the most commonly used method to treat actinic keratosis (AK). Cryosurgical methods are not standardized. OBJECTIVE: To examine differences in the spray techniques used for liquid nitrogen cryosurgery when treating AKs of the head, and the effect of these variations in technique on rates of complete clearance of AKs. MATERIALS AND METHODS: Patients were those from the FIELD-1 study, who received cryosurgery as per the investigators' usual practice to all AKs...
December 19, 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27995485/efficacy-and-safety-of-5-fluorouracil-0-5-salicylic-acid-10-in-the-field-directed-treatment-of-actinic-keratosis-a-phase-iii-randomized-double-blind-vehicle-controlled-trial
#13
Eggert Stockfleth, Ralph von Kiedrowski, Rolf Dominicus, John Ryan, Adam Ellery, Meritxell Falqués, Nathalie Ivanoff, Rosario Rodriguez Azeredo
INTRODUCTION: Due to the high prevalence of actinic keratosis (AK) and potential for lesions to become cancerous, clinical guidelines recommend that all are treated. The objective of this study was to evaluate the efficacy and safety of 5-fluorouracil (5-FU) 0.5%/salicylic acid 10% as field-directed treatment of AK lesions. METHODS: This multicenter, double-blind, vehicle-controlled study (NCT02289768) randomized adults, with a 25 cm(2) area of skin on their face, bald scalp, or forehead covering 4-10 clinically confirmed AK lesions (grade I/II), 2:1 to treatment or vehicle applied topically once daily for 12 weeks...
December 19, 2016: Dermatology and Therapy
https://www.readbyqxmd.com/read/27934068/increased-gold-nanoparticle-retention-in-brain-tumors-by-in-situ-enzyme-induced-aggregation
#14
Shaobo Ruan, Chuan Hu, Xian Tang, Xingli Cun, Wei Xiao, Kairong Shi, Qin He, Huile Gao
The treatment of brain tumors remains a challenge due to the limited accumulation of drugs and nanoparticles. Here, we triggered the aggregation of gold nanoparticles (AuNPs) using legumain to enhance the retention of chemotherapeutics in brain tumors. This nanoplatform, AuNPs-A&C, is comprised of Ala-Ala-Asn-Cys-Lys modified AuNPs (AuNPs-AK) and 2-cyano-6-aminobenzothiazole modified AuNPs (AuNPs-CABT). AuNPs-AK could be hydrolyzed to expose the 1,2-thiolamino groups on AuNPs-AK in the presence of legumain, which occurs by a click cycloaddition with the contiguous cyano group on AuNPs-CABT, resulting in formation of AuNPs aggregates...
November 22, 2016: ACS Nano
https://www.readbyqxmd.com/read/27914953/both-secreted-and-the-cellular-levels-of-bdnf-attenuated-due-to-tau-hyperphosphorylation-in-primary-cultures-of-cortical-neurons
#15
İrem Lütfiye Atasoy, Erdinç Dursun, Duygu Gezen-Ak, Derya Metin-Armağan, Melek Öztürk, Selma Yılmazer
Intracellular aggregation of hyperphosphorylated tau in neurofibrillary tangles (NFTs) is a major neuropathological hallmark of taupathies such as Alzheimer's disease. Okadaic acid (OKA) is a potent inhibitor of PP2A, leading to abnormal tau phosphorylation. Brain-derived neurotrophic factor (BDNF) is a neurotrophin that is selectively downregulated in AD. In this study, we investigated the effects of OKA induced tau hyperphosphorylation on secreted and cellular levels of BDNF in primary cortical neurons that were treated with 25nM OKA...
November 30, 2016: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/27898091/restoring-ureagenesis-in-hepatocytes-by-crispr-cas9-mediated-genomic-addition-to-arginase-deficient-induced-pluripotent-stem-cells
#16
Patrick C Lee, Brian Truong, Agustin Vega-Crespo, W Blake Gilmore, Kip Hermann, Stephanie Ak Angarita, Jonathan K Tang, Katherine M Chang, Austin E Wininger, Alex K Lam, Benjamen E Schoenberg, Stephen D Cederbaum, April D Pyle, James A Byrne, Gerald S Lipshutz
Urea cycle disorders are incurable enzymopathies that affect nitrogen metabolism and typically lead to hyperammonemia. Arginase deficiency results from a mutation in Arg1, the enzyme regulating the final step of ureagenesis and typically results in developmental disabilities, seizures, spastic diplegia, and sometimes death. Current medical treatments for urea cycle disorders are only marginally effective, and for proximal disorders, liver transplantation is effective but limited by graft availability. Advances in human induced pluripotent stem cell research has allowed for the genetic modification of stem cells for potential cellular replacement therapies...
November 29, 2016: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/27895634/cytosolic-proteome-profiling-of-aminoglycosides-resistant-mycobacterium-tuberculosis-clinical-isolates-using-maldi-tof-ms
#17
Divakar Sharma, Manju Lata, Rananjay Singh, Nirmala Deo, Krishnamurthy Venkatesan, Deepa Bisht
Emergence of extensively drug resistant tuberculosis (XDR-TB) is the consequence of the failure of second line TB treatment. Aminoglycosides are the important second line anti-TB drugs used to treat the multi drug resistant tuberculosis (MDR-TB). Main known mechanism of action of aminoglycosides is to inhibit the protein synthesis by inhibiting the normal functioning of ribosome. Primary target of aminoglycosides are the ribosomal RNA and its associated proteins. Various mechanisms have been proposed for aminoglycosides resistance but still some are unsolved...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27894246/therapy-related-changes-in-serum-proteome-patterns-of-early-stage-breast-cancer-patients-with-different-outcome
#18
Anna Walaszczyk, Monika Pietrowska, Anna Wojakowska, Agata Abramowicz, Aleksandra Chmura, Barbara Masłyk, Paweł Rodziewicz, Joanna Polańska, Katarzyna Behrendt, Elżbieta Nowicka, Rafał Tarnawski, Piotr Widłak
Adjuvant chemo- and/or radiotherapy is applied in majority of patients treated because of early stage breast cancer even though only a small fraction of them is at high risk of metastasis or recurrence. Hence, knowledge of biomarkers associated with risk of disease progression might help planning of an optimal therapy, and to protect large group of patients from toxicity of unnecessary treatment. Here we aimed to characterize serum proteome of patients diagnosed with early stage breast cancer who either showed no evidence of disease five years after the end of therapy or suffered from metastasis, relapse or second cancer during corresponding follow-up...
November 28, 2016: Protein and Peptide Letters
https://www.readbyqxmd.com/read/27889922/haloperidol-for-long-term-aggression-in-psychosis
#19
REVIEW
Abha Khushu, Melanie J Powney
BACKGROUND: Psychotic disorders can lead some people to become agitated. Characterised by restlessness, excitability and irritability, this can result in verbal and physically aggressive behaviour - and both can be prolonged. Aggression within the psychiatric setting imposes a significant challenge to clinicians and risk to service users; it is a frequent cause for admission to inpatient facilities. If people continue to be aggressive it can lengthen hospitalisation. Haloperidol is used to treat people with long-term aggression...
27, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27879948/efficacy-and-local-tolerability-of-different-spray-products-in-the-treatment-of-mild-to-moderate-acne-of-the-back-and-chest-a-controlled-3-arm-assessor-blinded-prospective-trial
#20
Ada Lo Schiavo, Rosa V Puca, Francesca Romano, Massimo Milani
BACKGROUND: A spray formulation containing 2 vitamin-A derivatives (hydroxypinacolone retinoate and retinol) carried in glycospheres (RetinSphere®) combined with an antimicrobial peptide (BIOPEP-15), salicylic acid and vitamin E (BR) has been recently developed for the treatment of truncal acne. We evaluated clinical efficacy of BR in comparison with two commonly used sprays, containing triethylcitrate and ethylinoleate (AK) and containing betaine, glycine and salicylic acid 2% (SP)...
November 23, 2016: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
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