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https://www.readbyqxmd.com/read/27923182/sociodemographic-lifestyle-and-psychosocial-determinants-of-hair-cortisol-in-a-south-london-community-sample
#1
Susanne Fischer, Roman Duncko, Stephani L Hatch, Andrew Papadopoulos, Laura Goodwin, Souci Frissa, Matthew Hotopf, Anthony J Cleare
OBJECTIVE: Hypothalamic-pituitary-adrenal (HPA) measures are crucial for research into stress and stress-related disorders. Most HPA measures fluctuate depending on diurnal rhythms and state confounders. Hair cortisol concentrations (HCC) are less susceptible to such fluctuations, but less is known about trait-like confounders. Using a community sample, we tested the relationship between HCC and a range of variables including demographic variables, hair treatment, and medication, as well as psychosocial variables, namely childhood trauma, critical life events, and depressive symptoms...
November 17, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27918001/evolution-of-skin-and-hair-in-african-americans
#2
Angela Kyei, Sara Hogan
Current demographic trends in the United States highlight the growing population of those who identify as having "skin of color." As such, dermatologists must have a greater comfort level and knowledge in treating some of the unique skin and hair conditions seen in this population. Understanding the scientific basis for the evolution of skin color and hair texture is necessary in order to understand the variations in the characteristics of skin and hair seen among racial and ethnic groups. This review seeks to highlight the current scientific explanation of skin color and hair texture, with special attention to people of African descent, in an attempt to give insight into the clinical presentations of hair and skin disorders seen in this group...
December 2016: Seminars in Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/27836531/childhood-sexual-abuse-and-early-timing-of-puberty
#3
Jennie G Noll, Penelope K Trickett, Jeffrey D Long, Sonya Negriff, Elizabeth J Susman, Idan Shalev, Jacinda C Li, Frank W Putnam
PURPOSE: The purpose was to examine whether the timing of puberty, indexed by breast development and pubic hair development, was earlier for sexually abused females compared with a matched comparison group of nonabused females, controlling for key alternative confounds. METHODS: A cohort of sexually abused females and matched comparisons was followed longitudinally at mean ages 11 through 20 years. Sexually abused participants (N = 84) were referred by protective services...
November 8, 2016: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/27798530/validity-of-a-subjective-financial-situation-measure-to-assess-socioeconomic-status-in-us-young-adults
#4
Valerie F Williams, Alexandria A Smith, Andrea C Villanti, Jessica M Rath, Elizabeth C Hair, Jennifer Cantrell, Lyubov Teplitskaya, Donna M Vallone
PURPOSE: Young adulthood is an important period for preventing the establishment of negative health behaviors that can influence trajectories to chronic disease and early death. Given the evolving nature of educational attainment and income variation during this developmental period, identifying indicators of socioeconomic status (SES) remains a challenge. This study examines measures of subjective and objective indicators of SES to predict health risk for young adults. METHODS: This study uses data from the Truth Initiative Young Adult Cohort Study from respondents aged 18 to 34 years who completed 3 consecutive surveys between June 2011 and August 2012 (n = 2182)...
October 28, 2016: Journal of Public Health Management and Practice: JPHMP
https://www.readbyqxmd.com/read/27775972/tolerance-to-a-hair-dye-product-containing-2-methoxymethyl-p-phenylenediamine-in-an-ethnically-diverse-population-of-p-phenylenediamine-allergic-individuals
#5
Amir Zahir, Chesahna Kindred, Brunhilde Blömeke, Carsten Goebel, Anthony A Gaspari
BACKGROUND: Allergic contact dermatitis after exposure to p-phenylenediamine (PPD)-containing hair dye products is a common and important clinical problem. Because there is a high rate of cross-elicitation of allergic contact dermatitis to other important hair dye products (such as p-toluene diamine and other aminophenol hair dyes) in PPD-allergic patients, safer alternative dyes with excellent hair coloring options are needed. OBJECTIVE: This study aimed to study tolerance to Me-PPD in a PPD-allergic cohort...
October 21, 2016: Dermatitis
https://www.readbyqxmd.com/read/27741343/assessment-of-irritation-and-sensitization-potential-of-eight-baby-skin-care-products
#6
Carlos Galzote, Mini Thomas, Mukta Sachdev
BACKGROUND: Ethnic differences in skin sensitivity suggest that greater emphasis be focused on understanding a product's effect in diverse populations. OBJECTIVE: The irritation and/or sensitization potential of 8 baby skin care products in Indian adults were evaluated using cumulative irritation tests (CIT) and human repeat insult patch testing (HRIPT) protocols. PATIENTS/MATERIALS/METHODS: Healthy males or females aged 18 to 65 years of Indian ethnicity were treated with each of 6 products (cream, hair oil, lotion, body wash, shampoo, and baby soap) using CIT (n = 25) and HRIPT (n = 200)...
October 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/27740706/perceived-weight-discrimination-and-chronic-biochemical-stress-a-population-based-study-using-cortisol-in-scalp-hair
#7
Sarah E Jackson, Clemens Kirschbaum, Andrew Steptoe
OBJECTIVE: There is increasing evidence for weight-based discrimination against persons with obesity. This study aimed to examine the physiological impact of perceived weight discrimination on cortisol in hair, an indicator of chronic stress exposure. METHODS: Data were from 563 nonsmoking individuals with obesity (body mass index, BMI ≥30 kg/m(2) ) participating in the English Longitudinal Study of Ageing. Experiences of discrimination were reported via questionnaire, and hair cortisol concentrations were determined from the scalp-nearest 2-cm hair segment...
December 2016: Obesity
https://www.readbyqxmd.com/read/27718775/breaking-the-cycle-of-hair-breakage-pearls-for-the-management-of-acquired-trichorrhexis-nodosa
#8
Alessandra Haskin, Shawn G Kwatra, Crystal Aguh
Acquired trichorrhexis nodosa is a common cause of hair loss for patients of all ethnicities. It is especially prevalent in black patients with tightly curled hair types and can present unique diagnostic and therapeutic challenges due to structural differences in these hair types and the combination of various hair care and styling practices that contribute to hair damage. While scalp biopsies can help rule out other etiologies of hair loss, there is a paucity of histologic findings in acquired trichorrhexis nodosa, making this primarily a clinical diagnosis...
October 10, 2016: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/27718426/hair-chemical-element-contents-and-influence-factors-of-reproductive-age-women-in-the-west-ujimqin-banner-inner-mongolia-china
#9
Shanshan Zhou, Haodong Yuan, Xiaoling Ma, Ying Liu
Women have an increased risk for chemical element deficiencies during reproductive age, particularly due to higher chemical element requirements and poor diets. Twenty-one chemical elements (Al, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Mo, Ni, Pb, Se, Si, Sn, Sr, Ti, V and Zn) in hair samples, which were collected from 71 non-pregnant and 236 pregnant women living in the West Ujimqin Banner, central Inner Mongolia, China, were measured, and the environment, dietary habits and ethnic group influence factors associated with the biomarker were analyzed...
January 2017: Chemosphere
https://www.readbyqxmd.com/read/27553217/metformin-improved-health-related-quality-of-life-in-ethnic-chinese-women-with-polycystic-ovary-syndrome
#10
Huang-TzOu, Pei-Chi Chen, Meng-Hsing Wu, Chung-Ying Lin
BACKGROUND: Few studies have assessed whether the amelioration of the clinical signs of polycystic ovary syndrome (PCOS) achieved by treatment leads to improvement in the health-related quality of life (HRQoL) of patients. This study was aimed to examine the HRQoL of ethnic Chinese women with PCOS who received metformin treatment. METHODS: This prospective study was conducted at a medical center in Taiwan. Study participants aged 18-45 years were diagnosed as having PCOS according to the Rotterdam criteria, and all received metformin treatment...
2016: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/27506896/the-diversity-of-the-human-hair-colour-assessed-by-visual-scales-and-instrumental-measurements-a-world-wide-survey
#11
I Lozano, J B Saunie, S Panhar, G Loussouarn
OBJECTIVE: To study: i) the diversity of the natural colour of the human hair through both visual assessment of Hair Tone levels and colorimetric measurements of hair strands collected from 2057 human male and female volunteers, from 23 regions of the world and ii) the correlation between visual assessments and colorimetric measurements. METHODS: Hair strands were analysed by a spectro-colorimeter under the L* a* b* referential system and scored in vivo by experts before sampling, through standardized visual reference scales based on a 1-10 range...
August 9, 2016: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/27503110/use-of-metabolomics-for-the-identification-and-validation-of-clinical-biomarkers-for-preterm-birth-preterm-samba
#12
Jose G Cecatti, Renato T Souza, Karolina Sulek, Maria L Costa, Louise C Kenny, Lesley M McCowan, Rodolfo C Pacagnella, Silas G Villas-Boas, Jussara Mayrink, Renato Passini, Kleber G Franchini, Philip N Baker
BACKGROUND: Spontaneous preterm birth is a complex syndrome with multiple pathways interactions determining its occurrence, including genetic, immunological, physiologic, biochemical and environmental factors. Despite great worldwide efforts in preterm birth prevention, there are no recent effective therapeutic strategies able to decrease spontaneous preterm birth rates or their consequent neonatal morbidity/mortality. The Preterm SAMBA study will associate metabolomics technologies to identify clinical and metabolite predictors for preterm birth...
August 8, 2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27498290/assessing-cortisol-from-hair-samples-in-a-large-observational-cohort-the-whitehall-ii-study
#13
Jessica G Abell, Tobias Stalder, Jane E Ferrie, Martin J Shipley, Clemens Kirschbaum, Mika Kivimäki, Meena Kumari
Hair cortisol concentrations (HCC) have been suggested to reflect long-term integrated cortisol levels, but most evidence of associations with co-variates is from small samples of healthy volunteers. The objective of this study was to describe the collection of hair samples in a large cohort study and report associations of demographic and health measures with HCC. We examined HCC measured from the 3cm hair segment near the scalp in 3507 participants (aged 59-83y) from The Whitehall II occupational cohort study of British civil servants...
November 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27440732/prurigo-pigmentosa-a-clinical-and-histopathological-study-of-nine-chinese-cases
#14
X Zeng, L Li, B N Cui
BACKGROUND: Prurigo pigmentosa (PP) is a chronic and recurrent inflammatory skin disease with the distinctive and prominent feature of reticulate hyperpigmentation. Most known cases have been reported in Japan; here we report nine Chinese cases. OBJECTIVE: To determine the clinical manifestation of prurigo pigmentosa and its effects in Chinese individuals compared to patients of other ethnicities. METHODS: We retrospectively analysed nine cases of PP...
July 21, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27386139/no-sweat-african-american-adolescent-girls-opinions-of-hairstyle-choices-and-physical-activity
#15
Susan J Woolford, Carole J Woolford-Hunt, Areej Sami, Natalie Blake, David R Williams
BACKGROUND: Obesity prevalence is higher among African American adolescent (AAA) girls than among non-black girls. Lower levels of physical activity (PA) likely contribute to this disparity; this may be impacted by hairstyle concerns. METHODS: In 2011, focus groups were conducted with AAA girls 14-17 years old (n = 36) in Michigan (n = 9), California (n = 11), and Georgia (n = 16). Groups addressed perceptions of hairstyles, exercise, and relationships between the two...
2016: BMC Obesity
https://www.readbyqxmd.com/read/27377913/residential-proximity-to-traffic-and-female-pubertal-development
#16
Laura A McGuinn, Robert W Voss, Cecile A Laurent, Louise C Greenspan, Lawrence H Kushi, Gayle C Windham
BACKGROUND: Traffic-related air pollution (TRAP) has been linked with several adverse health outcomes, including preterm birth and low birth weight, which are both related to onset of puberty. No studies to date have investigated the association between TRAP and altered pubertal timing. OBJECTIVE: Determine the association between residential proximity to traffic, as a marker of long-term TRAP exposure, and age at pubertal onset in a longitudinal study of girls...
September 2016: Environment International
https://www.readbyqxmd.com/read/27375115/mutational-spectrum-of-myo15a-and-the-molecular-mechanisms-of-dfnb3-human-deafness
#17
Atteeq U Rehman, Jonathan E Bird, Rabia Faridi, Mohsin Shahzad, Sujay Shah, Kwanghyuk Lee, Shaheen N Khan, Ayesha Imtiaz, Zubair M Ahmed, Saima Riazuddin, Regie Lyn P Santos-Cortez, Wasim Ahmad, Suzanne M Leal, Sheikh Riazuddin, Thomas B Friedman
Deafness in humans is a common neurosensory disorder and is genetically heterogeneous. Across diverse ethnic groups, mutations of MYO15A at the DFNB3 locus appear to be the third or fourth most common cause of autosomal-recessive, nonsyndromic deafness. In 49 of the 67 exons of MYO15A, there are currently 192 recessive mutations identified, including 14 novel mutations reported here. These mutations are distributed uniformly across MYO15A with one enigmatic exception; the alternatively spliced giant exon 2, encoding 1,233 residues, has 17 truncating mutations but no convincing deafness-causing missense mutations...
October 2016: Human Mutation
https://www.readbyqxmd.com/read/27188626/genetic-polymorphisms-of-26-y-str-loci-in-the-mongolian-minority-from-horqin-district-china
#18
Xiaoliang Fu, Yong Fu, Ying Liu, Juanjuan Guo, Yanfang Liu, Yadong Guo, Jie Yan, Jifeng Cai, Jinshan Liu, Lagabaiyila Zha
To study the population data of Y chromosome STR (Y-STRs) of the Mongolian minority population residing in the Horqin district, we analyzed haplotypes of 26 Y-STRs (DYS19, DYS385a/b, DYS389I, DYS389II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438, DYS439, DYS448, DYS456, DYS458, DYS481, DYS533, DYS549, DYS570, DYS576, DYS635, DYS643, DYS388, DYS449, DYS460, and YGATAH4) in 298 unrelated Chinese Mongolian individuals using the commercially available Goldeneye® DNA ID 26Y system. We also investigated blood stains, saliva spots, semen spots, hair follicles, fingernails, and sweat latent fingerprints from ten healthy males for testing the efficiency of direct amplification of this new Y-STRs system...
July 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27162350/ror1-is-essential-for-proper-innervation-of-auditory-hair-cells-and-hearing-in-humans-and-mice
#19
Oscar Diaz-Horta, Clemer Abad, Levent Sennaroglu, Joseph Foster, Alexandra DeSmidt, Guney Bademci, Suna Tokgoz-Yilmaz, Duygu Duman, F Basak Cengiz, M'hamed Grati, Suat Fitoz, Xue Z Liu, Amjad Farooq, Faiqa Imtiaz, Benjamin B Currall, Cynthia Casson Morton, Michiru Nishita, Yasuhiro Minami, Zhongmin Lu, Katherina Walz, Mustafa Tekin
Hair cells of the inner ear, the mechanosensory receptors, convert sound waves into neural signals that are passed to the brain via the auditory nerve. Little is known about the molecular mechanisms that govern the development of hair cell-neuronal connections. We ascertained a family with autosomal recessive deafness associated with a common cavity inner ear malformation and auditory neuropathy. Via whole-exome sequencing, we identified a variant (c.2207G>C, p.R736T) in ROR1 (receptor tyrosine kinase-like orphan receptor 1), cosegregating with deafness in the family and absent in ethnicity-matched controls...
May 24, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27124836/validation-of-chinese-version-of-polycystic-ovary-syndrome-health-related-quality-of-life-questionnaire-chi-pcosq
#20
Chung-Ying Lin, Huang-Tz Ou, Meng-Hsing Wu, Pei-Chi Chen
OBJECTIVES: To evaluate the responsiveness, longitudinal validity, and measurement invariance of the Chinese version of the Polycystic Ovary Syndrome Health-related Quality of Life Questionnaire (Chi-PCOSQ). RESEARCH DESIGN AND METHOD: This prospective study was conducted in a medical center in southern Taiwan. 102 women aged 18-45 years and diagnosed with PCOS were enrolled. Objective indicators for clinical changes of PCOS included assessing the 2-hour glucose and insulin levels before and after treatment...
2016: PloS One
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