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Gustavo José Leirós, Julieta María Ceruti, María Lía Castellanos, Ana Gabriela Kusinsky, María Eugenia Balañá
In androgenetic alopecia, androgens impair dermal papilla-induced hair follicle stem cell (HFSC) differentiation inhibiting Wnt signaling. Wnt agonists/antagonists balance was analyzed after dihydrotestosterone (DHT) stimulation in androgen-sensitive dermal papilla cells (DPC) cultured as spheroids or monolayer. In both culture conditions, DHT stimulation downregulated Wnt5a and Wnt10b mRNA while the Wnt antagonist Dkk-1 was upregulated. Notably, tissue architecture of DPC-spheroids lowers Dkk-1 and enhances Wnt agonists' basal expression; probably contributing to DPC inductivity...
October 18, 2016: Molecular and Cellular Endocrinology
K Ryan, D Gareth Williams, David J Balding
Many DNA profiles recovered from crime scene samples are of a quality that does not allow them to be searched against, nor entered into, databases. We propose a method for the comparison of profiles arising from two DNA samples, one or both of which can have multiple donors and be affected by low DNA template or degraded DNA. We compute likelihood ratios to evaluate the hypothesis that the two samples have a common DNA donor, and hypotheses specifying the relatedness of two donors. Our method uses a probability distribution for the genotype of the donor of interest in each sample...
September 21, 2016: Forensic Science International. Genetics
Tomoyuki Hioki, Hiroyuki Takama, Sumiko Makita, Masashi Akiyama
Aplasia cutis congenita (ACC) is a rare congenital disorder characterized by the absence of skin at birth, typically involving the midline of the scalp. This is the first case report to highlight the usefulness of precise ultrasonography for diagnosing mild ACC. A 1-month-old boy was referred to our hospital for assessment of a bald patch found at birth. He was born to nonconsanguineous parents in spontaneous vaginal delivery with a vacuum extractor because of fetal distress and anomaly of rotation at 40 weeks of gestation...
October 21, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
Muhammad Ahmad
Various classifications for male pattern baldness are mentioned in the literature. The 'Norwood's classification is the most commonly used but it has certain limitations. The new system has included 'three' extra features which were not mentioned in any other classification. It provides an opportunity to document the full and correct picture while documenting male pattern baldness. It also aids in assessing the treatment for various degrees of baldness.
July 2016: Journal of Cutaneous and Aesthetic Surgery
Visalini Nair-Shalliker, Sarsha Yap, Carlos Nunez, Sam Egger, Jennifer Rodger, Manish I Patel, Dianne L O'Connell, Freddy Sitas, Bruce K Armstrong, David P Smith
Prostate cancer (PC) is the most common non-cutaneous cancer in men worldwide. The relationships between PC and possible risk factors for PC cases (n=1181) and male controls (n=875) from the New South Wales (NSW) Cancer, Lifestyle and Evaluation of Risk Study (CLEAR) were examined in this study. The associations between PC risk and paternal history of PC, body mass index (BMI), medical conditions, sexual behaviour, balding pattern and puberty, after adjusting for age, income, region of birth, place of residence, and PSA testing, were examined...
October 14, 2016: International Journal of Cancer. Journal International du Cancer
Lin-Yun He, Wei-Wei Wang, Balde Alpha Ibrahima, Shuai Han, Zhou Li, Zhai Cai, Miao-Liang Chen, Bao-Zhu Chen, Hui-Shi Tan, Hai-Shan Zeng, Xiao-Li Dai, Min-Wei Zhou, Gang-Qing Zhang, Guo-Xin Li
Although the prognostic value of nodal metastases in differentiated thyroid cancer remains controversial, it is of interest to evaluate and understand the different characteristics of predictive outcomes.A multicenter retrospective study was conducted in 215 untreated patients with differentiated thyroid cancer from July 1997 to July 2015 in 4 medical centers of Guangdong Province. A total of 107 patients with nodal metastases (group A) were compared to 108 patients without metastases (group B). The 5-year disease-free survival (DFS), overall survival (OS), and postoperative complications in both groups were calculated...
October 2016: Medicine (Baltimore)
Jennifer Manne-Goehler, Rifat Atun, Andrew Stokes, Alexander Goehler, Dismand Houinato, Corine Houehanou, Mohamed Msaidie Salimani Hambou, Benjamin Longo Mbenza, Eugène Sobngwi, Naby Balde, Joseph Kibachio Mwangi, Gladwell Gathecha, Paul Waweru Ngugi, C Stanford Wesseh, Albertino Damasceno, Nuno Lunet, Pascal Bovet, Demetre Labadarios, Khangelani Zuma, Mary Mayige, Gibson Kagaruki, Kaushik Ramaiya, Kokou Agoudavi, David Guwatudde, Silver K Bahendeka, Gerald Mutungi, Pascal Geldsetzer, Naomi S Levitt, Joshua A Salomon, John S Yudkin, Sebastian Vollmer, Till Bärnighausen
BACKGROUND: Despite widespread recognition that the burden of diabetes is rapidly growing in many countries in sub-Saharan Africa, nationally representative estimates of unmet need for diabetes diagnosis and care are in short supply for the region. We use national population-based survey data to quantify diabetes prevalence and met and unmet need for diabetes diagnosis and care in 12 countries in sub-Saharan Africa. We further estimate demographic and economic gradients of met need for diabetes diagnosis and care...
October 7, 2016: Lancet Diabetes & Endocrinology
S Byberg, A B Fisker, A Rodrigues, I Balde, U Enemark, P Aaby, C S Benn, U K Griffiths
OBJECTIVES: Children younger than 12 months of age are eligible for childhood vaccines through the public health system in Guinea-Bissau. To limit open vial wastage, a restrictive vial opening policy has been implemented; 10-dose measles vaccine vials are only opened if six or more children aged 9-11 months are present at the vaccination post. Consequently, mothers who bring their child for measles vaccination can be told to return another day. We aimed to describe the household experience and estimate household costs of seeking measles vaccination in rural Guinea-Bissau...
October 7, 2016: Tropical Medicine & International Health: TM & IH
Ivar Snorrason, Michael R Walther, T David Elkin, Douglas W Woods
Although cognitive behavioral treatments (CBTs) have been recommended as first-line interventions for trichotillomania (hair-pulling disorder [HPD]), research on CBT for young children with HPD is limited. We illustrate the use of family-based CBT for HPD in an 8-year-old boy. The client had a 5-year history of chronic HPD and several large bald spots on the crown of his head. Treatment primarily comprised habit reversal training (HRT) and function-based interventions. The child showed significant improvement in HPD severity and impairment after 8 weekly sessions, although complete abstinence was not achieved...
November 2016: Journal of Clinical Psychology
Mikko Malmivuo, Juha Luoma, Markus Porthin
OBJECTIVE: The aim of the study was to compare the safety effects of studded and unstudded winter tyres based on fatal road accidents. METHODS: The data included 958 road accidents involving a passenger car or van that occurred in Finland from November to March between 1997 and 2012. RESULTS: Comparing the proportions of winter tyre type in accidents and in general traffic showed that the overall effect of tyre type on the number of accidents was not significant, although studded tyres reduced fatal accidents by 10-15%...
October 4, 2016: Traffic Injury Prevention
A J Bergsman, K G Blas, L Zamdborg, K Balde, J L Wloch, D Yan, J Robertson
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Nicole Gerlach, Matthias Mentel, Tim Köhler, Benjamin Tuchscherer, Birgit Garbe, Jasmina Ülker, Hagen Tronnier, Ulrike Heinrich, Mike Farwick
Sphingolipids are well known to promote keratinocyte differentiation and to induce ceramide production. In addition, they show anti-inflammatory and antimicrobial activities. Thus, the aim of this study is to investigate the potential effect of sphinganine on prolonging the hair anagen rate and improving the overall hair quality and scalp health. The inhibitory potential of sphinganine toward 5-α-reductase was studied using an in vitro assay. The stimulation of the antimicrobial peptide HBD2 by sphinganine was measured by real-time polymerase chain reaction and immunostaining...
2016: Clinical, Cosmetic and Investigational Dermatology
Serban Radian, Yoan Diekmann, Plamena Gabrovska, Brendan Holland, Lisa Bradley, Helen Wallace, Karen Stals, Anna-Marie Bussell, Karen McGurren, Martin Cuesta, Anthony W Ryan, Maria Herincs, Laura C Hernández-Ramírez, Aidan Holland, Jade Samuels, Elena Daniela Aflorei, Sayka Barry, Judit Dénes, Ida Pernicova, Craig E Stiles, Giampaolo Trivellin, Ronan McCloskey, Michal Ajzensztejn, Noina Abid, Scott A Akker, Moises Mercado, Mark Cohen, Rajesh V Thakker, Stephanie Baldeweg, Ariel Barkan, Madalina Musat, Miles Levy, Stephen M Orme, Martina Unterländer, Joachim Burger, Ajith V Kumar, Sian Ellard, Joseph McPartlin, Ross McManus, Gerard J Linden, Brew Atkinson, David J Balding, Amar Agha, Chris J Thompson, Steven J Hunter, Mark G Thomas, Patrick J Morrison, Márta Korbonits
The aryl hydrocarbon receptor interacting protein (AIP) founder mutation R304(*) (or p.R304(*) ; NM_003977.3:c.910C>T, p.Arg304Ter) identified in Northern Ireland (NI) predisposes to acromegaly/gigantism; its population health impact remains unexplored. We measured R304(*) carrier frequency in 936 Mid Ulster, 1,000 Greater Belfast (both in NI) and 2,094 Republic of Ireland (ROI) volunteers and in 116 NI or ROI acromegaly/gigantism patients. Carrier frequencies were 0.0064 in Mid Ulster (95%CI = 0.0027-0...
September 21, 2016: Human Mutation
John D O'Brien, Lucas Amenga-Etego, Ruiqi Li
BACKGROUND: The advent of whole-genome sequencing has generated increased interest in modelling the structure of strain mixture within clinical infections of Plasmodium falciparum The life cycle of the parasite implies that the mixture of multiple strains within an infected individual is related to the out-crossing rate across populations, making methods for measuring this process in situ central to understanding the genetic epidemiology of the disease. RESULTS: This paper derives a set of new estimators for inferring inbreeding coefficients using whole genome sequence read count data from P...
2016: Malaria Journal
Ammar Haidar, Sofiane Kabiche, Elyes Majoul, Issa-Bella Balde, Jean-Eudes Fontan, Salvatore Cisternino, Joël Schlatter
A stability-indicating assay by reversed-phase high performance liquid chromatography method was developed and validated for the determination of sulthiame (STM). The chromatographic separation was achieved on a reversed-phase NovaPack C18 column and an isocratic mobile phase consisting of deionized water:methanol (70:30, v/v). The flow rate was 1.0 mL/min (ultraviolet detection at 210 nm). The STM was separated within 2.83 min. The linearity of the method was demonstrated in the range of 20.0-200.0 μg/mL and a coefficient of determination of r (2) = 0...
2016: Analytical Chemistry Insights
Agnes Rosarina Prita Sari, Nicholas Wolfgang Rufaut, Leslie Norman Jones, Rodney Daniel Sinclair
CONTEXT: In androgenetic alopecia, follicular miniaturization and dynamic changes to the hair cycle produce patterned baldness. The most effective treatment for baldness is hair transplantation surgery. The major limitation to hair transplantation is the availability of donor hair from the relatively unaffected occipital scalp. Hair induction with in vitro expansion of donor follicle populations has the potential to overcome this. The major obstacle to this is that in vitro expansion of human dermal papilla cell (DPC) colonies is associated with irreversible loss of aggregative behavior and hair follicle-inductive potential...
July 2016: International Journal of Trichology
Chaoying Wang, Changxiao Li, Hong Wei, Yingzan Xie, Wenjiao Han
Responses of bald cypress (Taxodium distichum) and pond cypress (Taxodium ascendens) saplings in photosynthesis and growth to long-term periodic submergence in situ in the hydro-fluctuation zone of the Three Gorges Dam Reservoir (TGDR) were studied. Water treatments of periodic deep submergence (DS) and moderate submergence (MS) in situ were imposed on 2-year-old bald cypress and pond cypress saplings. The effects of periodic submergence on photosynthesis and growth were investigated after 3 years (i.e. 3 cycles) compared to a control (i...
2016: PloS One
Ron A Meyers, Joshua C McFarland
Slow fibers are typically characterized as functioning in avian postural behaviors such as soaring flight, and are described for a number of elite soarers such as vultures, pelicans and albatrosses. Golden Eagles and Bald Eagles also display soaring behavior and we examined their flight muscles for the presence of slow fibers. Surprisingly, eagles lack a deep layer to the pectoralis found in other soaring species. Additionally, the pectoralis as well as other shoulder muscles had few to no slow muscle fibers...
July 2016: Acta Zoologica
Julia Prinz, Aleksandar Matković, Jelena Pešić, Radoš Gajić, Ilko Bald
A combination of three innovative materials within one hybrid structure to explore the synergistic interaction of their individual properties is presented. The unique electronic, mechanical, and thermal properties of graphene are combined with the plasmonic properties of gold nanoparticle (AuNP) dimers, which are assembled using DNA origami nanostructures. This novel hybrid structure is characterized by means of correlated atomic force microscopy and surface-enhanced Raman scattering (SERS). It is demonstrated that strong interactions between graphene and AuNPs result in superior SERS performance of the hybrid structure compared to their individual components...
October 2016: Small
Marco Scutari, Ian Mackay, David Balding
The prediction of phenotypic traits using high-density genomic data has many applications such as the selection of plants and animals of commercial interest; and it is expected to play an increasing role in medical diagnostics. Statistical models used for this task are usually tested using cross-validation, which implicitly assumes that new individuals (whose phenotypes we would like to predict) originate from the same population the genomic prediction model is trained on. In this paper we propose an approach based on clustering and resampling to investigate the effect of increasing genetic distance between training and target populations when predicting quantitative traits...
September 2016: PLoS Genetics
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