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https://www.readbyqxmd.com/read/29317634/punctuated-evolution-of-canonical-genomic-aberrations-in-uveal-melanoma
#1
Matthew G Field, Michael A Durante, Hima Anbunathan, Louis Z Cai, Christina L Decatur, Anne M Bowcock, Stefan Kurtenbach, J William Harbour
Cancer is thought to arise through the accumulation of genomic aberrations evolving under Darwinian selection. However, it remains unclear when the aberrations associated with metastasis emerge during tumor evolution. Uveal melanoma (UM) is the most common primary eye cancer and frequently leads to metastatic death, which is strongly linked to BAP1 mutations. Accordingly, UM is ideally suited for studying the clonal evolution of metastatic competence. Here we analyze sequencing data from 151 primary UM samples using a customized bioinformatic pipeline, to improve detection of BAP1 mutations and infer the clonal relationships among genomic aberrations...
January 9, 2018: Nature Communications
https://www.readbyqxmd.com/read/29314577/identification-of-the-biosynthetic-gene-cluster-for-himeic-acid-a-a-ubiquitin-activating-enzyme-e1-inhibitor-in-aspergillus-japonicus-mf275
#2
Makoto Hashimoto, Hikaru Kato, Ayako Katsuki, Sachiko Tsukamoto, Isao Fujii
Himeic acid A, produced by the marine fungus Aspergillus japonicus MF275, is a specific inhibitor of the ubiquitin-activating enzyme E1 in the ubiquitin-proteasome system. To elucidate the mechanism of himeic acid biosynthesis, we first carried out feeding experiments with labeled precursors. The long fatty acyl side chain attached to the pyrone ring was confirmed to be of polyketide origin, while the amide substituent was found to be derived from leucine. These results suggest that a polyketide synthase-non-ribosomal peptide synthase (PKS-NRPS) is involved in himeic acid biosynthesis...
January 5, 2018: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/29304218/selective-vulnerability-of-brainstem-nuclei-in-distinct-tauopathies-a-postmortem-study
#3
Rana A Eser, Alexander J Ehrenberg, Cathrine Petersen, Sara Dunlop, Maria B Mejia, Claudia K Suemoto, Christine M Walsh, Hima Rajana, Jun Oh, Panos Theofilas, William W Seeley, Bruce L Miller, Thomas C Neylan, Helmut Heinsen, Lea T Grinberg
The brainstem nuclei of the reticular formation (RF) are critical for regulating homeostasis, behavior, and cognition. RF degenerates in tauopathies including Alzheimer disease (AD), progressive supranuclear palsy (PSP), and corticobasal degeneration (CBD). Although the burden of phopho-tau inclusion is high across these diseases, suggesting a similar vulnerability pattern, a distinct RF-associated clinical phenotype in these diseases indicates the opposite. To compare patterns of RF selective vulnerability to tauopathies, we analyzed 5 RF nuclei in tissue from 14 AD, 14 CBD, 10 PSP, and 3 control cases...
January 2, 2018: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/29289270/squamous-cell-carcinoma-of-the-pancreas
#4
Erica Lin, Hima Veeramachaneni, Benyam Addissie, Amindra Arora
No abstract text is available yet for this article.
January 2018: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/29246036/cholesteric-and-screw-like-nematic-phases-in-systems-of-helical-particles
#5
Giorgio Cinacchi, Alberta Ferrarini, Achille Giacometti, Hima Bindu Kolli
Recent numerical simulations of hard helical particle systems unveiled the existence of a novel chiral nematic phase, termed screw-like, characterised by the helical organization of the particle C2 symmetry axes round the nematic director with periodicity equal to the particle pitch. This phase forms at high density and can follow a less dense uniform nematic phase, with relative occurrence of the two phases depending on the helix morphology. Since these numerical simulations were conducted under three-dimensional periodic boundary conditions, two questions could remain open...
December 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/29243674/turmeric-a-condiment-cosmetic-and-cure
#6
REVIEW
Hima Gopinath, Kaliaperumal Karthikeyan
Turmeric (Curcuma longa L.) is an integral part of Asian culture and cuisine. It has been used in traditional medicine since centuries. A myriad of health benefits have been attributed to it. Curcumin, the most biologically active curcuminoid in turmeric, is being investigated in pre-clinical and clinical trials for its role in disease prevention and cure. It has antioxidant, anti-inflammatory, antineoplastic, anti-proliferative and antimicrobial effects. We review the chemistry of this plant, its cultural relevance in Indian skin care, and its uses in dermatology...
January 2018: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/29237822/potassium-regulated-distal-tubule-wnk-bodies-are-kidney-specific-wnk1-dependent
#7
Cary R Boyd-Shiwarski, Daniel J Shiwarski, Ankita Roy, Lubika J Nkashama, Hima N Namboodiri, Jian Xie, Kara L McClain, Allison Marciszyn, Thomas R Kleyman, Roderick J Tan, Donna B Stolz, Manojkumar A Puthenveedu, Chou-Long Huang, Arohan R Subramanya
With-No-Lysine (WNK) kinases coordinate volume and potassium homeostasis by regulating renal tubular electrolyte transport. In the distal convoluted tubule (DCT), potassium imbalance causes WNK signaling complexes to concentrate into large discrete foci, which we call "WNK bodies." Though these structures have been reported previously, the mechanisms that drive their assembly remain obscure. Here, we show that kidney-specific WNK1 (KS-WNK1), a truncated kinase-defective WNK1 isoform that is highly expressed in the DCT, is critical for WNK body formation...
December 13, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/29214601/emerging-potential-of-stimulus-responsive-nanosized-anticancer-drug-delivery-systems-for-systemic-applications
#8
REVIEW
Hima Bindu Ruttala, Thiruganesh Ramasamy, Thiagarajan Madeshwaran, Tran Tuan Hiep, Umadevi Kandasamy, Kyung Taek Oh, Han-Gon Choi, Chul Soon Yong, Jong Oh Kim
The development of novel drug delivery systems based on well-defined polymer therapeutics has led to significant improvements in the treatment of multiple disorders. Advances in material chemistry, nanotechnology, and nanomedicine have revolutionized the practices of drug delivery. Stimulus-responsive material-based nanosized drug delivery systems have remarkable properties that allow them to circumvent biological barriers and achieve targeted intracellular drug delivery. Specifically, the development of novel nanocarrier-based therapeutics is the need of the hour in managing complex diseases...
December 6, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/29142769/plexiform-neurofibroma-of-clitoris
#9
Dhanya Yesodharan, Bindu Sudarsanan, Annie Jojo, Mohan Abraham, Nisha Bhavani, Hima Mathews, Sheela Nampoothiri
The most frequent genital presentation of neurofibromatosis in females is clitoromegaly. We report a case of a 5-year-old girl with neurofibromatosis type 1 with clitoral plexiform neurofibromatosis. Clitoroplasty was done, and the histopathology confirmed the diagnosis. Though rare, plexiform neurofibroma of clitoris should always be considered as a differential diagnosis in children with clitoromegaly before embarking on detailed investigations.
December 2017: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/29142429/antioxidant-and-hepatoprotective-potential-of-swaras-and-hima-extracts-of-tinospora-cordifolia-and-boerhavia-diffusa-in-swiss-albino-mice
#10
Amit Kaushik, Athar Husain, Harshika Awasthi, Dewasya Pratap Singh, Raziuddin Khan, Dayanandan Mani
Background: In Ayurveda, five basic extraction procedures are mentioned in order of their decreasing potency. Swaras is considered as the most potent followed by, kalka, kwatha, fanta and hima. Objective: Present study was carried out to investigate the antioxidant and hepatoprotective potential of swaras and hima extracts of T.cordifolia and B. diffusa. Materials and Methods: Swaras and hima extracts of T. cordifolia and B. diffusa were prepared...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28974441/tyrosol-attenuates-lipopolysaccharide-induced-acute-lung-injury-by-inhibiting-the-inflammatory-response-and-maintaining-the-alveolar-capillary-barrier
#11
Yeon-Yong Kim, Soyoung Lee, Min-Jong Kim, Byeong-Cheol Kang, Hima Dhakal, Young-Ae Choi, Pil-Hoon Park, Hyukjae Choi, Tae-Yong Shin, Hyun Gyu Choi, Taeg Kyu Kwon, Dongwoo Khang, Sang-Hyun Kim
Acute lung injury (ALI) is a life-threatening disease characterized by increased pulmonary vascular permeability because of alveolar capillary barrier dysfunction and increased immune responses. This study determined the anti-inflammatory effect of tyrosol on lipopolysaccharide (LPS)-induced ALI and its underlying mechanisms of action. BALB/c mice were orally administered with tyrosol (0.1, 1, and 10 mg/kg) 1 h before an intratracheal injection of LPS (25 μg/50 μL). Oral treatment with tyrosol inhibited lung vascular permeability, histopathological changes, wet/dry lung weight ratio, and pulmonary vascular cell infiltration...
September 30, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28971726/proteomics-profiling-identifies-induction-of-caveolin-1-in-chronic-lymphocytic-leukemia-cells-by-bone-marrow-stromal-cells
#12
Hima V Vangapandu, Huiqin Chen, William G Wierda, Michael J Keating, Anil Korkut, Varsha Gandhi
Chronic lymphocytic leukemia (CLL) is an indolent B-cell malignancy in which cells reside in bone marrow, lymph nodes, and peripheral blood, each of which provides a unique microenvironment. Although the levels of certain proteins are reported to induce, changes in the CLL cell proteome in the presence of bone marrow stromal cells have not been elucidated. Reverse-phase protein array analysis of CLL cells before and 24 h after stromal cell interaction revealed changed levels of proteins that regulate cell cycle, gene transcription, and protein translation...
October 3, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28969289/extrication-of-dna-from-burnt-teeth-exposed-to-environment
#13
Gantala Ramlal, Devarajn Vevaraju, Arjun Yadav Vemula, Tipirisety Swapna, P Hima Bindu
INTRODUCTION: Teeth are good sources of DNA in mass disasters especially in fires and explosions because they are largely protected from environmental and physical conditions. It is possible to obtain mitochondrial DNA (mtDNA) even in cases of degraded human remains. AIM: To obtain DNA from burnt teeth exposed to environment for a period of six months and 12 months and to highlight the importance of DNA obtained from tooth in identifying a deceased in fire accidents after being subjected to environment...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28932073/a-lagging-lock-hair-cycle-abnormalities-in-follicular-vitiligo
#14
Hima Gopinath, Kaliaperumal Karthikeyan, Meghana Valeti
No abstract text is available yet for this article.
July 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28921693/liquid-cell-electron-microscopy-of-adsorbed-polymers
#15
Kandula Hima Nagamanasa, Huan Wang, Steve Granick
Individual macromolecules of polystyrene sulfonate and poly(ethylene oxide) are visualized with nanometer resolution using transmission electron microscopy (TEM) imaging of aqueous solutions with and without added salt, trapped in liquid pockets between creased graphene sheets. Successful imaging with 0.3 s per frame is enabled by the sluggish mobility of the adsorbed molecules. This study finds, validating others, that an advantage of this graphene liquid-cell approach is apparently to retard sample degradation from incident electrons, in addition to minimizing background scattering because graphene windows are atomically thin...
September 18, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28893049/comparative-evaluation-of-the-efficacy-of-bioactive-ceramic-composite-granules-alone-and-in-combination-with-platelet-rich-fibrin-in-the-treatment-of-mandibular-class-ii-furcation-defects-a-clinical-and-radiographic-study
#16
Hima S Lohi, Dilip G Nayak, Ashita S Uppoor
INTRODUCTION: Predictable closure of furcation defects with bone grafts, Guided Tissue Regeneration (GTR) and a combination of the two has remained an elusive goal so far. Hence, evaluation of biomimetic agents as candidate technologies for periodontal regeneration merit due consideration. In this study, Choukroun's Platelet Rich Fibrin (PRF), a second generation platelet concentrate, is combined with bone graft to examine if the addition enhances the therapeutic potential of bone graft in the management of Class II furcation defects...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28892895/effectivity-of-titanium-oxide-based-nano-particles-on-e-coli-from-clinical-samples
#17
Hima Bindu Mantravadi
INTRODUCTION: Nanoparticles composed of Titanium Oxide (TiO2) are non toxic, durable, stable and have a high refractive index with a lot of scope in biomedical applications. Due to their antibacterial effects, they can be applied to inanimate objects like glass, metal and even biomedical implants. AIM: This study was conducted to assess the antibacterial effect of Titanium Oxide (TiO2) alone or with Silver (Ag) as an additive on Escherichia coli. MATERIALS AND METHODS: Escherichia coli isolates (n=25) sensitive to most of the drugs including first generation cephalosporins, ampicillin and amoxycillin from various samples like pus, urine, sputum and blood were placed onto the glass slides containing TiO2 annealed at 200°C, 400°C, TiO2 with 0...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28891336/polyunsaturated-fatty-acid-based-targeted-nanotherapeutics-to-enhance-the-therapeutic-efficacy-of-docetaxel
#18
Thiruganesh Ramasamy, Pasupathi Sundaramoorthy, Hima Bindu Ruttala, Yongjoo Choi, Woo Hyun Shin, Jee-Heon Jeong, Sae Kwang Ku, Han-Gon Choi, Hwan Mook Kim, Chul Soon Yong, Jong Oh Kim
Since breast cancer is one of the most lethal malignancies, targeted strategies are urgently needed. In this study, we report the enhanced therapeutic efficacy of docetaxel (DTX) when combined with polyunsaturated fatty acids (PUFA) for effective treatment of multi-resistant breast cancers. Folic acid (FA)-conjugated PUFA-based lipid nanoparticles (FA-PLN/DTX) was developed. The physicochemical properties, in vitro uptake, in vitro cytotoxicity, and in vivo anticancer activity of FA-PLN/DTX were evaluated. FA-PLN/DTX could efficiently target and treat human breast tumor xenografts in vivo...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28890258/facile-construction-of-bioreducible-crosslinked-polypeptide-micelles-for-enhanced-cancer-combination-therapy
#19
Hima Bindu Ruttala, Natarajan Chitrapriya, Kaliappan Kaliraj, Thiruganesh Ramasamy, Woo Hyun Shin, Jee-Heon Jeong, Jae Ryong Kim, Sae Kwang Ku, Han-Gon Choi, Chul Soon Yong, Jong Oh Kim
In this study, we developed pH and redox-responsive crosslinked polypeptide-based combination micelles for enhanced chemotherapeutic efficacy and minimized side effects. The stability and drug release properties of the polypeptide micelles were efficiency balanced by the corona-crosslinking of the triblock copolymer, poly(ethylene glycol)-b-poly(aspartic acid)-b-poly(tyrosine) (PEG-b-pAsp-b-pTyr) with coordinated redox and pH dual-sensitivity by introducing disulfide crosslinkages. Because of the crosslinking of the middle shell of the triblock polypeptide micelles, their robust structure was maintained in strong destabilization conditions and exhibited excellent stability...
November 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28883877/homocystinuria-with-cerebral-venous-sinus-thrombosis-excellent-recovery-with-intravenous-recombinant-tissue-plasminogen-activator
#20
Vykuntaraju K Gowda, Raghunath C Nanjundappa, Hima Pendharkar, Naveen Benakappa
Hyperhomocysteinemia can cause cerebral venous thrombosis. Recombinant tissue plasminogen activator is one of the treatment options for cerebral venous thrombosis in selected cases. We present here a 7-year-old boy with homocysteinuria with stroke. MRI of brain showed cerebral venous sinus thrombosis. We successfully treated with intravenous recombinant tissue plasminogen activator. He recovered completely without any complications. Recombinant tissue plasminogen activator can be considered one of the treatment options in cerebral venous thrombosis in homocystinura...
2017: Iranian Journal of Child Neurology
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