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5-aminolevulinic acid

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https://www.readbyqxmd.com/read/28730260/longer-survival-of-a-patient-with-glioblastoma-resected-with-5-aminolevulinic-acid-5-ala-guided-surgery-and-foreign-body-reaction-to-polyglycolic-acid-pga-suture
#1
Raluca Maria Munteanu, Lucian Eva, Bogdan IonuŢ DobrovăŢ, Alin Constantin Iordache, Liviu Pendefunda, Nicoleta Dumitrescu, Doina Mihăilă, Cristina Maria Gavrilescu, Elena Şapte, Ion Poeată
In recent years, there is a growing evidence that using 5-aminolevulinic acid (5-ALA)-guided resection of a cerebral glioblastoma, associated with chemoradiotherapy determine a prolonged survival of these patients, even though this period do not exceed 15 months. 5-ALA is a natural biochemical precursor of heme that is metabolized to fluorescent porphyrins, particularly protoporphyrin IX (PPIX) and no foreign reaction were noted until now. However, foreign body reaction developing in neurosurgery is documented in a few number of cases to suture material, surgical hemostatic material, or surgical glove starch, but up to now we could not find any article about granulomatous inflammation to polyglycolic acid (PGA) suture after brain tumor resection...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28720798/neuroprotective-effect-of-5-aminolevulinic-acid-against-low-inorganic-phosphate-in-neuroblastoma-sh-sy5y-cells
#2
Naoko Takase, Masatoshi Inden, Shin-Ichiro Sekine, Yumi Ishii, Hiroko Yonemitsu, Wakana Iwashita, Hisaka Kurita, Yutaka Taketani, Isao Hozumi
PiT-1 (encoded by SLC20A1) and PiT-2 (encoded by SLC20A2) are type-III sodium-dependent phosphate cotransporters (NaPiTs). Recently, SLC20A2 mutations have been found in patients with idiopathic basal ganglia calcification (IBGC), and were predicted to bring about an inability to transport Pi from the extracellular environment. Here we investigated the effect of low Pi loading on the human neuroblastoma SH-SY5Y and the human glioblastoma A172 cell lines. The results show a different sensitivity to low Pi loading and differential regulation of type-III NaPiTs in these cells...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716738/photodynamic-therapy-and-pain-a-systematic-review
#3
Jennifer Maria Ang, Irbaz Bin Riaz, Muhammad Umar Kamal, Gyorgy Paragh, Nathalie C Zeitouni
Photodynamic therapy (PDT) is an effective treatment for actinic keratoses and early skin cancers, and the only office procedure to control field cancerization. Procedure-associated pain limits widespread PDT use and by early termination of treatment can decrease overall therapeutic efficacy. Here we review and assess reported interventions on PDT-associated pain, in order to identify the most promising methods to manage treatment-associated pain and identify focus for future studies. Literature search was performed using MEDLINE, EMBASE, and the Cochrane Library by two independent reviewers to select publications that assessed and compared pain quantitatively during PDT treatment for actinic keratoses, basal cell carcinomas, and/or in situ squamous cell carcinomas...
July 14, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28711463/modulation-of-atlantic-salmon-mirnome-response-to-sea-louse-infestation
#4
REVIEW
Valentina Valenzuela-Muñoz, Beatriz Novoa, Antonio Figueras, Cristian Gallardo-Escárate
MicroRNAs are non-coding RNA that plays a crucial role in post-transcriptional regulation and immune system regulation. On other hand, sea lice are prevalent parasites that affect salmon farming, generating different degrees of immune suppression depending on the salmon and sea louse species. Caligus rogercresseyi for example, which affects the salmon industry in Chile, decreases Th1 response, macrophage activation, TLR-mediated response and iron regulation in infected fish. In this study, we explore Atlantic salmon miRNome during infestation by C...
July 12, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28703320/5-aminolevulinic-acid-patch-pdt-in-the-treatment-of-actinic-cheilitis
#5
Sonja Radakovic, Adrian Tanew
BACKGROUND: Actinic cheilitis (AC) is a common disease caused by chronic ultraviolet exposure. OBJECTIVE: Alacare is a self-adhesive, skin coloured 5-aminolaevulinic acid (ALA) patch that has been developed for the treatment of mild to moderate actinic keratosis (AK). Considering the good results in the treatment of AK, the standardized delivery of ALA and the simple application Alacare patch PDT appears as an interesting treatment option for AC. METHODS: We retrospectively assessed the efficacy, tolerability and cosmetic outcome of Alacare patch PDT in eleven patients with AC...
July 13, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28699026/aminolevulinic-acid-and-nitric-oxide-regulate-oxidative-defense-and-secondary-metabolisms-in-canola-brassica-napus-l-under-drought-stress
#6
Nudrat Aisha Akram, Majid Iqbal, Atta Muhammad, Muhammad Ashraf, Fahad Al-Qurainy, Sidra Shafiq
To minimize the damaging effects of stresses, plant growth regulators (PGRs) are widely used to sustain the plant life under stress-prone environments. So, a study was carried out to evaluate the response of two canola (Brassica napus L.) cultivars, Dunkeld and Cyclone, to foliar-applied two potential PGRs, nitric oxide (NO) and 5-aminolevulinic acid, under water deficit conditions. In this study, the levels of NO and ALA used were 0.02 and 0.895 mM, respectively. Plants of both canola cultivars were subjected to control (100% field capacity) and water deficit (60% field capacity)...
July 12, 2017: Protoplasma
https://www.readbyqxmd.com/read/28693272/metformin-enhances-the-cytotoxicity-of-5-aminolevulinic-acid-mediated-photodynamic-therapy-in-vitro
#7
Tomohiro Osaki, Inoru Yokoe, Kiwamu Takahashi, Katsushi Inoue, Masahiro Ishizuka, Tohru Tanaka, Kazuo Azuma, Yusuke Murahata, Takeshi Tsuka, Norihiko Itoh, Tomohiro Imagawa, Yoshiharu Okamoto
The biguanide metformin is a drug widely used for the treatment of type 2 diabetes. Metformin enhances the cytotoxicity of chemotherapy by promoting the adenosine monophosphate-activated protein kinase (AMPK) autophagy signaling pathway. Photodynamic therapy (PDT) with 5-aminolevulinic acid (5-ALA), a precursor of protoporphyrin IX (PpIX), leads to apoptosis when PpIX accumulates in the mitochondria, and also leads to autophagy through activation of AMPK. In the present study, the effect of metformin in combination with 5-ALA-PDT was evaluated in vitro in KLN205 lung cancer cells...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28676994/cimetidine-lactulose-therapy-ameliorates-erythropoietic-protoporphyria-related-liver-injury
#8
Naoyuki Fujimori, Michiharu Komatsu, Naoki Tanaka, Mai Iwaya, Hajime Nakano, Ayumi Sugiura, Tomoo Yamazaki, Soichiro Shibata, Yugo Iwaya, Takashi Muraki, Yuki Ichikawa, Takefumi Kimura, Satoru Joshita, Takeji Umemura, Akihiro Matsumoto, Eiji Tanaka
A 21-year-old Japanese man was admitted to our hospital because of severe abdominal pain and jaundice. He had been suffering from abdominal pain attacks and liver dysfunction since 18 years of age. Liver histology showed amorphous brown deposits in the sinusoidal space and significant periportal fibrosis without apparent hepatitis. Increased protoporphyrin in serum and feces and ferrochelatase gene mutation confirmed the final diagnosis of erythropoietic protoporphyria (EPP). Since ursodeoxycholic acid (UDCA) intake and glucose infusion are insufficient to ameliorate jaundice and abdominal attacks, cimetidine and lactulose were added in order to suppress hepatic delta-aminolevulinic acid synthase and limit re-absorption of protoporphyrin, respectively...
July 4, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28670342/5-aminolevulinic-acid-promotes-arachidonic-acid-biosynthesis-in-the-red-microalga-porphyridium-purpureum
#9
Kailin Jiao, Jingyu Chang, Xianhai Zeng, I-Son Ng, Zongyuan Xiao, Yong Sun, Xing Tang, Lu Lin
BACKGROUND: The microalga Porphyridium purpureum within Rhodophyta abundantly produces several valuable proteins, polysaccharides, pigments and long-chain polyunsaturated fatty acid; it is especially effective in accumulating arachidonic acid (ARA). However, this high ARA yield is always achieved in conditions unfavourable for cell growth. In this study, we present a method for obtaining desirable ARA levels from P. purpureum while simultaneously promoting cell growth using appropriate concentrations of the growth hormone 5-Aminolevulinic acid (5-ALA)...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28666973/ala-pdt-combined-with-antibiotics-for-the-treatment-of-atypical-mycobacterial-skin-infections-outcomes-and-safety
#10
Kedai Sun, Hang Yang, Xianqiong Huang, Nanpeng Gong, QinQin, Weiping Lu, Xia Lei
BACKGROUND: Photodynamic therapy (PDT) has been shown to be a very successful new therapy in clinical practice, and its usefulness as a treatment for bacterial infections has been gradually recognized by researchers, who believe it has very good clinical prospects. Atypical mycobacterial skin infections are a type of rare refractory infection. The aim of this study was to evaluate the efficacy and safety of 5-aminolevulinic acid photodynamic therapy (ALA-PDT) combined with antibiotics for the treatment of atypical mycobacterial skin infections...
June 27, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28666233/5-aminolevulinic-acid-improves-dna-damage-and-dna-methylation-changes-in-deltamethrin-exposed-phaseolus-vulgaris-seedlings
#11
Mahmut Sinan Taspinar, Murat Aydin, Esra Arslan, Muhammet Yaprak, Guleray Agar
Deltamethrin, synthetic type II pyrethroid, is one of the most widely used pesticide in agriculture. Intense use of deltamethrin can cause permanant or temporary damages in nontarget plant species. In this study, we aimed to determine DNA methylation change and DNA damage level in Phaseolus vulgaris seedlings subjected to different concentrations of deltamethrin (0.02, 0.1 and 0.5 ppm). Coupled Restriction Enzyme Digestion-Random Amplification (CRED-RA) was performed to analyze the changes of DNA methylation as well as Randomly Amplified Polymorphic DNA (RAPD) was used for genotoxic influences estimation and genomic stability...
June 21, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28665248/wavelength-specific-lighted-suction-instrument-for-5-aminolevulinic-acid-fluorescence-guided-resection-of-deep-seated-malignant-glioma-technical-note
#12
Ramin A Morshed, Seunggu J Han, Darryl Lau, Mitchel S Berger
Surgery guided by 5-aminolevulinic acid (ALA) fluorescence has become a valuable adjunct in the resection of malignant intracranial gliomas. Furthermore, the fluorescence intensity of biopsied areas of a resection cavity correlates with histological identification of tumor cells. However, in the case of lesions deep within a resection cavity, light penetration may be suboptimal, resulting in less excitation of 5-ALA metabolites, leading to decreased fluorescence emission. To address this obstacle, the authors report on the use of a 400-nm wavelength fiber-optic lighted suction instrument that can be used both during resection of a tumor and to provide direct light to deeper areas of a resection cavity...
June 30, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28657694/the-aspergillus-nidulans-velvet-interacting-protein-vipa-is-involved-in-light-stimulated-heme-biosynthesis
#13
Julian Röhrig, Zhenzhong Yu, Keon-Sang Chae, Jog-Hwa Kim, Kap-Hoon Han, Reinhard Fischer
Filamentous fungi are able to differentiate morphologically and adapt the metabolism to internal and external cues. One major regulator is the so-called velvet protein, VeA, best studied in Aspergillus nidulans. The protein interacts with several other proteins to regulate light sensing, the balance between asexual and sexual development, penicillin biosynthesis or mycotoxin production. Here, we characterized a novel VeA-interacting protein, VipA. The 334 amino acid long protein comprises a FAR1-like DNA-binding domain, known from plant transcription factors like FHY3 (Far-red elongated hypocotyl 3)...
June 28, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28647616/photodynamic-therapy-in-dermatology-beyond-non-melanoma-cancer-an-update
#14
REVIEW
Xiang Wen, Yong Li, Michael R Hamblin
Photodynamic therapy (PDT) employs a photosensitizer (PS) and visible light in the presence of oxygen, leading to production of cytotoxic reactive oxygen species, which can damage the cellular organelles and cause cell death. In dermatology PDT has usually taken the form of topical application of a precursor in the heme biosynthesis pathway, called 5-aminolevulinic acid (or its methyl ester), so that an active PS, protoporphyrin IX accumulates in the skin. As PDT enhances dermal remodeling and resolves chronic inflamation, it has been used to treat cutaneous disorders include actinic keratoses, acne, viral warts, skin rejuvenation, psoriasis, localized scleroderma, some non-melanoma skin cancers and port-wine stains...
June 21, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28640436/two-step-irradiance-schedule-versus-single-dose-cold-compress-for-pain-control-during-5-aminolevulinic-acid-based-photodynamic-therapy-of-condyloma-acuminatum
#15
Xiaonan Shao, Fang Wang, Bin Xu
OBJECTIVE: The purpose of this study was to investigate the effect of two-step irradiance schedule in relieving pain during PDT of CA. METHODS: The study was a prospective, controlled trial of 141 CA patients who were randomly divided into Group A (two-step irradiance schedule) and Group B (single-dose cold compress). The numeric rating scales (NRS) of patients' pain were recorded at 5, 10, 15, and 20 minutes during each PDT. RESULTS: The efficacy of PDT and NRS scores of patients in the two groups were compared...
June 22, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28638045/treatment-of-sarcopenia-and-glucose-intolerance-through-mitochondrial-activation-by-5-aminolevulinic-acid
#16
Chikako Fujii, Kazutoshi Miyashita, Masanori Mitsuishi, Masaaki Sato, Kentaro Fujii, Hiroyuki Inoue, Aika Hagiwara, Sho Endo, Asuka Uto, Masaki Ryuzaki, Motowo Nakajima, Tohru Tanaka, Masanori Tamaki, Ayako Muraki, Toshihide Kawai, Hiroshi Itoh
Recently, sarcopenia has attracted attention as therapeutic target because it constitutes a risk factor for metabolic and cardiovascular diseases. We focused 5-aminolevulinic acid (ALA) which act as electron carriers in the mitochondrial electron transport system. The mice that received ALA for 8 weeks gained muscle strength and endurance, and exhibited increased muscle mass and mitochondrial amount. Administration of ALA to sarcopenia mice aged 100 weeks and chronic kidney disease (CKD) model mice also increased muscle mass and improved physical performance...
June 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28624551/accumulation-of-porphyrins-in-propionibacterium-acnes-by-5-aminolevulinic-acid-and-its-esters
#17
Arisa Ogata, Yuya Hasunuma, Emii Kikuchi, Takuya Ishii, Masahiro Ishizuka, Yoshikazu Tokuoka
We have investigated the accumulation of porphyrins in Propionibacterium acnes (P.acnes) by 5-aminolevulinic acid hydrochloride (ALA) and its esters, ALA methyl ester hydrochloride (mALA), ALA octyl ester hydrochloride (oALA), and ALA benzyl ester hydrochloride (bALA). From the fluorescence spectra of porphyrins accumulated in P.acnes, the order of porphyrin accumulation is as follows: ALA≫mALA≈bALA>oALA (≈0). Moreover, the PDT efficacy is reduced in the order of ALA>mALA≈bALA>oALA (≈without additives)...
June 14, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28619661/corrigendum-to-the-optimization-of-fluorescence-imaging-of-brain-tumor-tissue-differentiated-from-brain-edema-in-vivo-kinetic-study-of-5-aminolevulinic-acid-and-talaporfin-sodium-photodiagn-photodyn-ther-6-2009-19-27
#18
Takao Tsurubuchi, Alexander Zaboronok, Tetsuya Yamamoto, Kei Nakai, Fumiyo Yoshida, Makoto Shirakawa, Masahide Matsuda, Akira Matsumura
No abstract text is available yet for this article.
June 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28617562/5-aminolevulinic-acid-photodynamic-therapy-stimulates-local-immunity-in-patients-with-condylomata-acuminata-via-activation-of-t-lymphocytes
#19
J Du, Q Cheng, Z Zhang, J-F Wu, F Li, S-Y Chen, Y-L Wang, X-N Lu, J-H Xu
The article "5-Aminolevulinic acid photodynamic therapy stimulates local immunity in patients with condylomata acuminata via activation of T lymphocytes" by J. Du, Q. Cheng, Z. Zhang, J.-F. Wu, F. Li, S.-Y. Chen, Y.-L. Wang, X.-N. Lu, J.-H. Xu, published in Eur Rev Med Pharmacol Sci 2017; 21 (5): 1125-1135 has been withdrawn.
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28611801/melatonin-improves-the-photosynthetic-apparatus-in-pea-leaves-stressed-by-paraquat-via-chlorophyll-breakdown-regulation-and-its-accelerated-de-novo-synthesis
#20
Katarzyna Szafrańska, Russel J Reiter, Małgorzata M Posmyk
The positive effect of melatonin on the function of the photosynthetic apparatus is known, but little is known about the specific mechanisms of melatonin's action in plants. The influence of melatonin on chlorophyll metabolism of 24-day-old Pisum sativum L. seedlings during paraquat (PQ)-induced oxidative stress was investigated in this study. Seeds were hydro-primed with water (H), 50 and 200 μM melatonin/water solutions (H-MEL50, H-MEL200), while non-primed seeds were used as controls (C). Increases in chlorophyllase activity (key enzyme in chlorophyll degradation) and 5-aminolevulinic acid contents (the first compound in the porphyrin synthesis pathway) were observed in H-MEL50 and H-MEL200 leaf disks...
2017: Frontiers in Plant Science
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