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Abhinandan Mani Tripathi, Abhishek Niranjan, Sribash Roy
Development of flower color in plants is a complex process. Among others, it is an important trait for ornamental flowering plants. Canna is a flowering ornamental plant of family Cannaceae. To understand the molecular mechanism of flower color development in Canna, RNA sequencing from flower tissues of two contrasting flower color cultivars, Red President (RP) and Tropical Sunrise (TS) was performed. More than 27.0 million and 19.0 million clean reads were obtained from RP and TS, respectively. The combined clean reads were assembled into 147,295 unigenes...
March 7, 2018: Plant Physiology and Biochemistry: PPB
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No abstract text is available yet for this article.
March 2018: PLoS Neglected Tropical Diseases
Liwen Feng, Don Antoine Lanfranchi, Leandro Cotos, Elena Cesar-Rodo, Katharina Ehrhardt, Alice-Anne Goetz, Herbert Zimmermann, François Fenaille, Stephanie A Blandin, Elisabeth Davioud-Charvet
Malaria is a tropical parasitic disease threatening populations in tropical and sub-tropical areas. Resistance to antimalarial drugs has spread all over the world in the past 50 years, thus new drugs are urgently needed. Plasmodione (benzylmenadione series) has been identified as a potent antimalarial early lead drug, acting through a redox bioactivation on asexual and young sexual blood stages. To investigate its metabolism, a series of plasmodione-based tools, including a fully13 C-labelled lead drug and putative metabolites, have been designed and synthesized for drug metabolism investigation...
March 15, 2018: Organic & Biomolecular Chemistry
Prabha R Nair, Revathy S Ajayakumar, Liji Mary David, Imran A Girach, Kavitha Mottungan
This paper presents the first observational results from an Indian station on the long-term changes in surface ozone (O3 )-a major environmental pollutant and green house gas-over a period of about 40 years. It is based on the in situ measurements carried out during 1973-1975, 1983-1985, 1997-1998 and 2004-2014 at the tropical coastal station, Thiruvananthapuram. From 1973 to 1997, surface O3 shows a slow increase of ~ 0.1 ppb year-1 and a faster increase of 0.4 ppb year-1 afterwards till 2009 after which it showed a levelling off till 2012 followed by a minor decrease...
March 14, 2018: Environmental Science and Pollution Research International
Anita Lwanga, Michael Anis, Mohamed Ayoubi, Jaya Sharma, Pam Khosla
Myiasis is the infestation of humans with dipterous larvae. Traditionally, myiasis was thought to affect individuals living in tropical regions, however, several cases in temperate zones have been reported. We encountered two patients with histories of malignancies that presented with complaints of myiasis, in Chicago, in the spring and summer of 2016. The first patient, a 54-year-old female with a history of breast cancer, presented with complaints of maggots infesting her postsurgical chest wounds. She was diagnosed with sepsis, cellulitis, and wound myiasis...
January 10, 2018: Curēus
Rajat Das Gupta, Asm Shahabuddin
This review aimed to compare Bangladesh's Universal Health Coverage (UHC) monitoring framework with the global-level recommendations and to find out the existing gaps of Bangladesh's UHC monitoring framework compared to the global recommendations. In order to reach the aims of the review, we systematically searched two electronic databases - PubMed and Google Scholar - by using appropriate keywords to select articles that describe issues related to UHC and the monitoring framework of UHC applied globally and particularly in Bangladesh...
January 8, 2018: Curēus
Joy Ogbechi, Belinda S Hall, Thomas Sbarrato, Jack Taunton, Anne E Willis, Ronald C Wek, Rachel E Simmonds
Mycolactone is the exotoxin virulence factor of Mycobacterium ulcerans that causes the neglected tropical disease Buruli ulcer. We recently showed it to be a broad spectrum inhibitor of Sec61-dependent co-translational translocation of proteins into the endoplasmic reticulum (ER). An outstanding question is the molecular pathway linking this to its known cytotoxicity. We have now used translational profiling to better understand the reprogramming that occurs in cells exposed to mycolactone. Gene ontology identified enrichment in genes involved in cellular response to stress, and apoptosis signalling among those showing enhanced translation...
March 14, 2018: Cell Death & Disease
N D B Ehelepola, A N Abayagunawardana, T N Sudusinghe
BACKGROUND: Hemolysis can occur in people with G6PD deficiency under oxidative stress. Acalypha indica is a tropical plant used as a medicinal plant as well as a vegetable. There are a few reported cases of Acalypha indica ingestion induced hemolysis in G6PD deficient people. All except one of them are from Sri Lanka. The information available at present (2017) about G6PD deficiency prevalence and variants of the G6PD gene among Sri Lankans is very sparse. There are no past reports on hemolytic crisis in a G6PD deficient person presenting mimicking leptospirosis...
March 14, 2018: BMC Research Notes
Isaac Winkler, Sonja J Scheffer, Matthew L Lewis, Kristina J Ottens, Andrew P Rasmussen, Géssica A Gomes-Costa, Luz Maria Huerto Santillan, Marty A Condon, Andrew A Forbes
BACKGROUND: Much evolutionary theory predicts that diversity arises via both adaptive radiation (diversification driven by selection against niche-overlap within communities) and divergence of geographically isolated populations. We focus on tropical fruit flies (Blepharoneura, Tephritidae) that reveal unexpected patterns of niche-overlap within local communities. Throughout the Neotropics, multiple sympatric non-interbreeding populations often share the same highly specialized patterns of host use (e...
March 14, 2018: BMC Evolutionary Biology
Tessa Camenzind, Edith C Hammer, Johannes Lehmann, Dawit Solomon, Sebastian Horn, Matthias C Rillig, Stefan Hempel
The socio-economic values of fertile and carbon-rich Dark Earth soils are well described from the Amazon region. Very recently, Dark Earth soils were also identified in tropical West Africa, with comparable beneficial soil properties and plant growth-promoting effects. The impact of this management technique on soil microbial communities, however, is less well understood, especially with respect to the ecologically relevant group of arbuscular mycorrhizal (AM) fungi. Thus, we tested the hypotheses that (1) improved soil quality in African Dark Earth (AfDE) will increase soil microbial biomass and shift community composition and (2) concurrently increased nutrient availability will negatively affect AM fungal communities...
April 1, 2018: FEMS Microbiology Ecology
Miriam Eddyani, Ghislain E Sopoh, Gilbert Ayelo, Luc V C Brun, Jean-Jacques Roux, Yves Barogui, Dissou Affolabi, William R Faber, Marleen Boelaert, Annelies Van Rie, Françoise Portaels, Bouke C de Jong
Background: The diagnosis of the neglected tropical skin and soft tissue disease Buruli ulcer (BU) is made on clinical and epidemiological grounds, after which treatment with BU-specific antibiotics is initiated empirically. Given the current decline in BU incidence, clinical expertise in the recognition of BU is likely to wane and laboratory confirmation of BU becomes increasingly important. We therefore aimed to determine the diagnostic accuracy of clinical signs and microbiological tests in patients presenting with lesions clinically compatible with BU...
March 10, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
E G Moura Júnior, A Pott, W Severi, C S Zickel
We evaluated the response of the biomass of aquatic macrophytes under limnological changes after water level fluctuation (WLF) of two tropical reservoirs (R1 and R2), located in northeastern Brazil. Initially we tested the hypothesis that post-WLF limnological conditions and biomass of macrophytes increase or decrease, depending on the variable or species. We monitored a 4 × 50 m permanent plot, in four expeditions per period (pre- or post-WLF), assessing species biomass and 10 limnological variables. We utilized 0...
March 12, 2018: Brazilian Journal of Biology, Revista Brasleira de Biologia
Diego Raymundo, Jamir Prado-Junior, Norberto Emídio de Oliveira-Neto, Lucas Dezidério Santana, Vagner Santiago do Vale, Tamiel Baiocchi Jacobson, Paulo Eugênio Alves Macedo de Oliveira, Fabrício Alvim Carvalho
Understanding the relationships between Coffea arabica L. and the native tree community of secondary forests regrowing after the abandonment of coffee plantations is important because, as a non-native species in the Neotropics, coffee can outcompete native species, reducing diversity and forests ecosystem services. We aimed to answer three questions: 1) Does coffee regeneration in secondary forests differ between shaded and unshaded abandoned plantations?; 2) How is coffee basal area related to structural attributes, species diversity and composition of the native community?; and 3) Do the relationships between coffee and native community differ between tree and sapling components? We sampled the tree and sapling components in a seasonal tropical dry forest that were previously used as shaded and unshaded coffee plantations...
2018: PloS One
Trung Bui, Thanh-Son Dao, Truong-Giang Vo, Miquel Lürling
Warming climate is predicted to promote cyanobacterial blooms but the toxicity of cyanobacteria under global warming is less well studied. We tested the hypothesis that raising temperature may lead to increased growth rates but to decreased microcystin (MC) production in tropical Microcystis strains. To this end, six Microcystis strains were isolated from different water bodies in Southern Vietnam. They were grown in triplicate at 27 °C (low), 31 °C (medium), 35 °C (high) and 37 °C (extreme). Chlorophyll-a-, particle- and MC concentrations as well as dry-weights were determined...
March 14, 2018: Toxins
Vanessa A Thomas, Heather L Crouse, Kristy O Murray, Deborah C Hsu, Elizabeth A Camp, Andrea T Cruz
OBJECTIVE: The aim of this study was to perform a needs assessment of pediatric (PEM) and general emergency medicine (EM) provider knowledge, comfort, and current practice patterns in the evaluation of pediatric tropical infectious diseases. METHODS: An online survey was developed based on educational priorities identified by an expert panel via modified Delphi methodology. The survey included assessment of providers' typical evaluation, diagnosis, and treatment of tropical diseases and was distributed to PEM and EM providers in 2 large professional organizations...
March 12, 2018: Pediatric Emergency Care
Li Huan-Zhang, Zang Xin-Zhong, Qian Men-Bao, Xue Jing-Bo, Zhou Chang-Hai, Chen Ying-Dan, Tian Tian, Cao Chun-Li, Li Shi-Zhu
Cysticercosis refers to a parasitic infection caused by the larvae of pork tapeworm Taenia solium . It is a parasitic zoonosis and listed by the World Health Organization (WHO) as one of the neglected tropical diseases. Cysticercosis is spreading all over the world through globalization and it mainly epidemic in developing countries. In the southwest and minority nationality areas of China, as a result of the low level of medical and health care, and the unchangeable diet custom, there are still many cases of cysticercosis, which is manifested as a local high prevalence...
February 27, 2018: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
Li Hong-Mei, Ding Wei, Huang Lu-Lu, Qian Ying-Jun, Ma Xue-Jiao, Guan Ya-Yi
OBJECTIVE: To investigate the effect of short-term global health training on tropical diseases in China, so as to provide the reference in professional trainings. METHODS: The study took the short-term global health training project on tropical diseases in China as an example. The structured questionnaires were distributed to each trainee pre- and post-training course. RESULTS: A total of 89 trainees were included in the survey, and 68.5% (61 cases) of the trainees were older than 35 years and 85...
January 8, 2018: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
Guillaume Sallé, Roz Laing, James A Cotton, Kirsty Maitland, Axel Martinelli, Nancy Holroyd, Alan Tracey, Matthew Berriman, W David Smith, George F J Newlands, Eve Hanks, Eileen Devaney, Collette Britton
Some nematode species are economically important parasites of livestock, while others are important human pathogens causing some of the most important neglected tropical diseases. In both humans and animals, anthelmintic drug administration is the main control strategy, but the emergence of drug-resistant worms has stimulated the development of alternative control approaches. Among these, vaccination is considered to be a sustainable and cost effective strategy. Currently, Barbervax® for the ruminant strongylid Haemonchus contortus is the only registered subunit vaccine for a nematode parasite, although a vaccine for the human hookworm Necator americanus is undergoing clinical trials (HOOKVAC consortium)...
March 10, 2018: International Journal for Parasitology
Khansoudaphone Phakhounthong, Pimwadee Chaovalit, Podjanee Jittamala, Stuart D Blacksell, Michael J Carter, Paul Turner, Kheng Chheng, Soeung Sona, Varun Kumar, Nicholas P J Day, Lisa J White, Wirichada Pan-Ngum
BACKGROUND: Dengue fever is a re-emerging viral disease commonly occurring in tropical and subtropical areas. The clinical features and abnormal laboratory test results of dengue infection are similar to those of other febrile illnesses; hence, its accurate and timely diagnosis for providing appropriate treatment is difficult. Delayed diagnosis may be associated with inappropriate treatment and higher risk of death. Early and correct diagnosis can help improve case management and optimise the use of resources such as hospital staff, beds, and intensive care equipment...
March 13, 2018: BMC Pediatrics
Xianjuan Kou, Biao Li, Julia B Olayanju, Justin M Drake, Ning Chen
Moringa oleifera Lam. ( M. oleifera ), which belongs to the Moringaceae family, is a perennial deciduous tropical tree, and native to the south of the Himalayan Mountains in northern India. M. oleifera is rich in proteins, vitamin A, minerals, essential amino acids, antioxidants, and flavonoids, as well as isothiocyanates. The extracts from M. oleifera exhibit multiple nutraceutical or pharmacological functions including anti-inflammatory, antioxidant, anti-cancer, hepatoprotective, neuroprotective, hypoglycemic, and blood lipid-reducing functions...
March 12, 2018: Nutrients
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