Natural hair color and the incidence of endometriosis

2006 ◽  
Vol 85 (4) ◽  
pp. 866-870 ◽  
Author(s):  
Stacey A. Missmer ◽  
Donna Spiegelman ◽  
Susan E. Hankinson ◽  
Susan Malspeis ◽  
Robert L. Barbieri ◽  
...  
Keyword(s):  
Hair Color ◽  
Natural Hair

Hair Follicle Melanogenesis Reflected in Hair Pigmentation as a Developmental Factor in Alopecia Areata

2021 ◽  
pp. 1-3
Author(s):  
Margit Juhasz ◽  
Rosalynn R.Z. Conic ◽  
Natasha Atanaskova Mesinkovska
Keyword(s):  
Hair Follicle ◽  
Alopecia Areata ◽  
Large Scale ◽  
Medical Center ◽  
Control Group ◽  
Hair Color ◽  
Natural Hair ◽  
Hair Pigmentation ◽  
Developmental Factor ◽  
Record Review

The mechanism of alopecia areata (AA) is not well-elucidated, and hair follicle melanogenesis pathways are implicated as possible sources for autoantigens. After a retrospective medical record review at a single tertiary medical center, the hair color of 112 AA patients were identified and compared to a control group of 104 androgenetic alopecia patients. There were no statistically significant differences in the natural hair color prevalence between the 2 groups (<i>p</i> = 0.164), and hair color was not a predictor of the alopecia type. Our results suggest hair pigmentation, determined by the eumelanin-to-pheomelanin ratio, is not a positive risk factor for AA development. We hope that our study will encourage multiple large-scale, collaborative, retrospective medical reviews to determine if our results are reproducible in diverse patient populations.

Association Between Alopecia Areata and Natural Hair Color Among White Individuals

2021 ◽  
Author(s):  
Ahmed Yousaf ◽  
Justin Lee ◽  
Wei Fang ◽  
Michael S. Kolodney
Keyword(s):  
Alopecia Areata ◽  
Hair Color ◽  
Natural Hair

scholarly journals A STUDY ON BRAND PREFERNCE OF CONSUMERS IN PURCHASING HAIR DYE IN TIRUNELVELI CITY

2016 ◽  
Vol 4 (3SE) ◽  
pp. 57-62
Author(s):  
A. Hamil ◽  
Muniswari M
Keyword(s):  
Advanced Age ◽  
Hair Color ◽  
Hair Dyes ◽  
Hair Dye ◽  
Natural Hair ◽  
Cosmetic Product ◽  
Gray Hair ◽  
Cosmetic Industry ◽  
Different Types ◽  
Day By Day

Hair dye use is very common among both Men & Women. Hair dye users are increasing day by day coloring of hair is performed not only by professionals but also a popular cosmetic product. Hair dye is used mostly to change gray hair, since gray hair is a sign of an advanced age. Most of them are using hair dye in our home. Earlier natural hair dyes were used but now due to advancement in cosmetic industry, different types have been developed. There has been concern about hair dye since scientist is trying to find out if there is a link between hair color and cancer.

scholarly journals Natural hair color and questionnaire-reported pain among women in the United States

2016 ◽  
Vol 29 (2) ◽  
pp. 239-242 ◽  
Author(s):  
Wen-Qing Li ◽  
Xiang Gao ◽  
Shelley S. Tworoger ◽  
Abrar A. Qureshi ◽  
Jiali Han
Keyword(s):  
United States ◽  
The United States ◽  
Hair Color ◽  
Natural Hair

Does a woman's hair color and length affect perceptions and attentional focus?

2014 ◽  
Author(s):  
Susanna S. P. Petaisto ◽  
David C. Matz ◽  
Hillary B. Manning
Keyword(s):  
Attentional Focus ◽  
Hair Color

Looking Out for Something Better to Come: Interview with Director Hanna Polak

2016 ◽  
Vol 69 (4) ◽  
pp. 65-71
Author(s):  
Masha Shpolberg
Keyword(s):  
United States ◽  
The United States ◽  
Hair Color ◽  
Yale University ◽  
Garbage Dump ◽  
To Come

Hanna Polak was in the United States in December 2015 for a screening of Something Better to Come (2014) and The Children of Leningradsky (2004) at Yale University, where the interview was conducted. Polak's devastating documentary Something Better to Come swept through the festival circuit with force, winning a Special Jury Award at IDFA along with awards at over twenty other festivals. Shot illegally on a garbage dump just outside Moscow over the course of fourteen years, the film follows a girl named Yula from age 10 to 24, as she grows up doing the things that teenagers everywhere do—experimenting with her hair color and makeup, with cigarettes and alcohol—all while living in the most difficult of conditions.

TOKSISITAS AKUT INFUSA KULIT ARI KACANG TANAH (Arachis hypogea L.) PADA MENCIT BALB/ C

2018 ◽  
Vol 15 (2) ◽  
pp. 62
Author(s):  
Risha Fillah Fithria ◽  
Ririn Lispita Wulandari ◽  
Devi Nisa Hidayati ◽  
Lilis Rejeki
Keyword(s):  
Single Dose ◽  
Color Change ◽  
Negative Control ◽  
Control Group ◽  
Hair Color ◽  
Peanut Shell ◽  
Control Group Design ◽  
Safety Standards ◽  
Arachis Hypogea ◽  
Passive Behavior

ABSTRACTPeanut shell (PS) infusion has been shown to be antithrombocytopenia, but there has been no research on safety standards. This study aims to identify the symptoms of toxic effects, the potency of toxicity and histopathology of liver male Balb/C mice after a single dose of PS infusion. This research uses randomized matched posttest only control group design. Twenty five mice were divided into 5 orally dosage groups, ie, PS infusion with a dose of 0,026; 0.052; 0.104; 0.208 g/20gBW; and negative control of CMC Na 0.5%. The observation period is for 14 days. The results showed that single dose of PS infusion had a pseudo LD50 value ie > 0.208g/20gBW which was practically non toxic. Symptoms to watch out for the BW infusion were passive behavior, bradycnea, hair color change, hair loss, and weight loss at doses of 3 and 4. It is unclear whether liver damage ie inflammation, necrosis, and albuminous degeneration caused by PS infusion or other causes.keywords: acute toxicity, infusion, peanut shell

A Melanocortin-4 Receptor Agonist Induces Skin and Hair Pigmentation in Patients with Monogenic Mutations in the Leptin-Melanocortin Pathway

2021 ◽  
pp. 1-10
Author(s):  
Varvara Kanti ◽  
Lia Puder ◽  
Irina Jahnke ◽  
Philipp Maximilian Krabusch ◽  
Jan Kottner ◽  
...  
Keyword(s):  
Leptin Receptor ◽  
Skin Pigmentation ◽  
Gene Mutations ◽  
Continuous Treatment ◽  
Whole Body ◽  
Hair Color ◽  
Phase 2 ◽  
Loss Of Function ◽  
The Impact ◽  
Over Time

<b><i>Background and Objectives:</i></b> Gene mutations within the leptin-melanocortin signaling pathway lead to severe early-onset obesity. Recently, a phase 2 trial evaluated new pharmacological treatment options with the MC4R agonist <i>setmelanotide</i> in patients with mutations in the genes encoding proopiomelanocortin (POMC) and leptin receptor (LEPR). During treatment with <i>setmelanotide,</i> changes in skin pigmentation were observed, probably due to off-target effects on the closely related melanocortin 1 receptor (MC1R). Here, we describe in detail the findings of dermatological examinations and measurements of skin pigmentation during this treatment over time and discuss the impact of these changes on patient safety. <b><i>Methods:</i></b> In an investigator-initiated, phase 2, open-label pilot study, 2 patients with loss-of-function POMC gene mutations and 3 patients with loss-of-function variants in LEPR were treated with the MC4R agonist <i>setmelanotide</i>. Dermatological examination, dermoscopy, whole body photographic documentation, and spectrophotometric measurements were performed at screening visit and approximately every 3 months during the course of the study. <b><i>Results:</i></b> We report the results of a maximum treatment duration of 46 months. Skin pigmentation increased in all treated patients, as confirmed by spectrophotometry. During continuous treatment, the current results indicate that elevated tanning intensity levels may stabilize over time. Lips and nevi also darkened. In red-haired study participants, hair color changed to brown after initiation of <i>setmelanotide</i> treatment. <b><i>Discussion:</i></b> <i>Setmelanotide</i> treatment leads to skin tanning and occasionally hair color darkening in both POMC- and LEPR-deficient patients. No malignant skin changes were observed in the patients of this study. However, the results highlight the importance of regular skin examinations before and during MC4R agonist treatment.

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