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https://www.readbyqxmd.com/read/29035284/traction-alopecia-a-neglected-entity-in-2017
#1
REVIEW
Christiana Oyinlola Akingbola, Jui Vyas
Traction alopecia was first described in 1904 but is still a cause of scarring hair loss in young women worldwide. It is unique in being initially a reversible then an irreversible (scarring) form of alopecia. Linked to tightly-pulled hairstyles, it is seen across all races. The pattern of hair loss depends on the style creating it but most commonly affects the frontotemporal hairline. There are some new examination findings associated with traction alopecia, which are traction folliculitis, the fringe sign and hair casts (pseudonits) on dermatoscopy...
November 2017: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/29024374/human-papillomavirus-and-post-transplant-cutaneous-squamous-cell-carcinoma-a-multicenter-prospective-cohort-study
#2
Jan Nico Bouwes Bavinck, Mariet C W Feltkamp, Adele C Green, Marta Fiocco, Sylvie Euvrard, Catherine A Harwood, Charlotte M Proby, Luigi Naldi, Janouk C D Diphoorn, Anna Venturuzzo, Gianpaolo Tessari, Ingo Nindl, Francesca Sampogna, Damiano Abeni, Rachel E Neale, Jelle J Goeman, Koen D Quint, Anne Berthe Halk, Carmen Sneek, Roel E Genders, Maurits N C de Koning, Wim G V Quint, Ulrike Wieland, Sönke Weissenborn, Tim Waterboer, Michael Pawlita, Herbert Pfister
Organ-transplant recipients (OTR) have a 100-fold increased risk of cutaneous squamous-cell carcinoma (cSCC). We prospectively evaluated the association between beta-genus human-papillomaviruses (betaPV) and keratinocyte carcinoma in OTR. Two OTR cohorts without cSCC were assembled: cohort 1 transplanted in 2003-2006 (n=274) and cohort 2 in 1986-2002 (n=352). Participants were followed until death or cessation of follow-up in 2016. BetaPV infection was assessed in eyebrow hairs using PCR-based methods. BetaPV IgG seroresponses were determined by multiplex serology...
October 11, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29020403/cardiac-and-systemic-rejuvenation-after-cardiosphere-derived-cell-therapy-in-senescent-rats
#3
Lilian Grigorian-Shamagian, Weixin Liu, Soraya Fereydooni, Ryan C Middleton, Jackelyn Valle, Jae Hyung Cho, Eduardo Marbán
Aim: The aim is to assess the effects of CDCs on heart structure, function, gene expression, and systemic parameters in aged rats. Diastolic dysfunction is characteristic of aged hearts. Cardiosphere-derived cell (CDC) therapy has exhibited several favourable effects on heart structure and function in humans and in preclinical models; however, the effects of CDCs on aging have not been evaluated. Methods and Results: We compared intra-cardiac injections of neonatal rat CDCs to vehicle (phosphate-buffered saline, PBS) in 21...
August 14, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28944135/management-of-syndromic-diarrhea-tricho-hepato-enteric-syndrome-a-review-of-the-literature
#4
REVIEW
Alexandre Fabre, Patrice Bourgeois, Marie-Edith Coste, Céline Roman, Vincent Barlogis, Catherine Badens
Syndromic diarrhea/tricho-hepato-enteric syndrome (SD/THE) is a rare disease linked to the loss of function of either TTC37 or SKIV2L, two components of the SKI complex. It is characterized by a combination of 9 signs (intractable diarrhea, hair abnormalities, facial dysmorphism, immune abnormalities, IUGR/SGA, liver abnormalities, skin abnormalities, congenital heart defect and platelet abnormalities). We present a comprehensive review of the management of SD/THE and tested therapeutic regimens. A review of the literature was conducted in May 2017: 29 articles and 2 abstracts were included describing a total of 80 patients, of which 40 presented with mutations of TTC37, 14 of SKIV2L...
August 2017: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/28938366/-camouflaging-cleft-lip-scar-using-follicular-unit-extraction-hair-transplantation-combined-with-autologous-fat-grafting
#5
Osman Akdag, Nuh Evin, Mehtap Karamese, Zekeriya Tosun
BACKGROUND: The scar that occurs after cleft lip surgery poses a serious cosmetic problem. One of the methods used to solve this problem in adult male patients is hair transplantation. However, satisfactory results with this method cannot always be achieved due to possible graft loss. The corrective feature of fat grafting has been reported in many studies. The aim of this report is to share our results with hair transplantation combined with fat grafting in patients with cleft lip. METHODS: This study included 20 patients who had both a scar and alopecia in the cleft lip area...
September 15, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28932754/hair-growth-in-two-alopecia-patients-after-fecal-microbiota-transplant
#6
Dionne Rebello, Elaina Wang, Eugene Yen, Peter A Lio, Colleen R Kelly
Clostridium difficile infections can be life-threatening but are increasingly being treated successfully with fecal microbiota transplantation (FMT). We report two patients with alopecia universalis who developed subsequent hair regrowth after FMT for treatment of recurrent C. difficile infections. Gut microbiota may have immunomodulatory effects in autoimmune conditions such as alopecia areata, and further study may elucidate disease mechanisms and lead to alternative treatment options for these patients for whom treatment options are currently limited...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28932067/extensive-donor-site-keloids-in-follicular-unit-extraction-hair-transplantation
#7
Shimona Garg, Anand Kumar, Ankita Tuknayat, Gurvinder Pal Thami
Hair transplantation, a generally regarded as a safe surgical modality for the treatment of androgenetic alopecia, is not without its potential risks and complications. A case of an extensive keloid formation at donor site following follicular unit extraction is discussed. Hair transplant surgeons should be aware of this significant potential complication, especially in patients having previous keloidal tendencies to avoid such disastrous outcomes.
July 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/28922518/accelerated-epithelialization-and-improved-wound-healing-metrics-in-porcine-full-thickness-wounds-transplanted-with-full-thickness-skin-micrografts
#8
Christina L Rettinger, John L Fletcher, Anders H Carlsson, Rodney K Chan
Split-thickness skin grafting (STSG) is the current gold standard for treatment of extensive burn and traumatic skin injuries. However, STSG is limited by donor-site morbidity and availability, and often leads to scarring and wound contracture. Furthermore, these thin grafts lack dermal elements such as nerves and adnexa which are important in recapitulating normal skin function. Methods of fractional skin replacement either as minced STSGs or microscopic skin tissue columns have been proposed, though these techniques have not been fully characterized and lack evidence of regenerated adnexal structures...
September 18, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28889862/genetic-dna-profile-in-urine-and-hair-follicles-from-patients-who-have-undergone-allogeneic-hematopoietic-stem-cell-transplantation
#9
Ana Santurtún, José A Riancho, Maite Santurtún, Carlos Richard, M Mercedes Colorado, Mayte García Unzueta, María T Zarrabeitia
Biological samples from patients who have undergone allogeneic hematopoietic stem cell transplantation (HSCT) constitute a challenge for individual identification. In this study we analyzed the genetic profiles (by the amplification of 15 autosomic STRs) of HSCT patients found in different types of samples (blood, hair and urine) that may be the source of DNA in civil or criminal forensic cases. Our results show that while in hair follicles the donor component was not detected in any patient, thus being a reliable source of biological material for forensic identification, mixed chimerism was detected in urine samples from all patient, and no correlation was found between the time elapsed from the transplant and the percentage of chimerism...
September 2017: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/28887865/plasma-rich-plasma-the-ultimate-secret-for-youthful-skin-elixir-and-hair-growth-triggering
#10
REVIEW
Ebtisam Elghblawi
The clinical application of platelet-rich plasma (PRP) is based on the increase in the concentration of growth factors that are released from alpha-granule of the concentrated platelets and in the secretion of proteins which are able to capitalize on the healing process at the cellular level. It has been invented to restore the natural beauty by starting the natural rejuvenation process of the skin and aiming to make it function as a younger one and to keep the skin youthful and maintain it. Besides that, it is also emerged to include hairs as a new injectable procedure to enable stimulating hair growth locally and topically; preventing its fall; improving hair shaft, hair stem, and its caliber; increasing its shine, vitality, and pliability; and declining hair splitting and breakage...
September 8, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28886268/implanted-hair-follicle-associated-pluripotent-hap-stem-cells-encapsulated-in-polyvinylidene-fluoride-membrane-cylinders-promote-effective-recovery-of-peripheral-nerve-injury
#11
Aiko Yamazaki, Kohya Obara, Natsuko Tohgi, Kyoumi Shirai, Sumiyuki Mii, Yuko Hamada, Nobuko Arakawa, Ryoichi Aki, Robert M Hoffman, Yasuyuki Amoh
Hair follicle-associated-pluripotent (HAP) stem cells are located in the bulge area of the hair follicle, express the stem-cell marker, nestin, and have been shown to differentiate to nerve cells, glial cells, keratinocytes, smooth muscle cells, cardiac muscle cells, and melanocytes. Transplanted HAP stem cells promote the recovery of peripheral nerve and spinal cord injuries and have the potential for heart regeneration as well. In the present study, we implanted mouse green fluorescent protein (GFP)-expressing HAP stem-cell spheres encapsulated in polyvinylidene fluoride (PVDF)-membrane cylinders into the severed sciatic nerve of immunocompetent and immunocompromised (nude) mice...
October 18, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28853496/incidence-and-regression-of-actinic-keratoses-in-organ-transplant-recipients
#12
Zainab Jiyad, Louise Marquart, Peter O'Rourke, Adèle C Green
Actinic keratoses (AKs) are highly dynamic lesions and AK activity has been shown to be associated with squamous cell carcinoma (SCC). We sought to explore risk factors which may affect the 12-month turnover of AKs in organ transplant recipients (OTRs). The number of incident AKs, regressed AKs and net change in AK counts were calculated. Negative binomial regression and Poisson regression models were used to estimate rate ratios (RR) for these 3 outcomes. Among 150 renal and 89 liver OTRs, those who spent > 50% of a typical weekday in the sun had a lower rate of AK regression than those who spent minimal time in the sun during a typical weekday...
August 30, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28818455/adipose-derived-stromal-cells-enhance-auditory-neuron-survival-in-an-animal-model-of-sensory-hearing-loss
#13
Philipp Schendzielorz, Maike Vollmer, Kristen Rak, Armin Wiegner, Nashwa Nada, Katrin Radeloff, Rudolf Hagen, Andreas Radeloff
BACKGROUND: A cochlear implant (CI) is an electronic prosthesis that can partially restore speech perception capabilities. Optimum information transfer from the cochlea to the central auditory system requires a proper functioning auditory nerve (AN) that is electrically stimulated by the device. In deafness, the lack of neurotrophic support, normally provided by the sensory cells of the inner ear, however, leads to gradual degeneration of auditory neurons with undesirable consequences for CI performance...
August 14, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28798321/crispr-cas9-mediated-deletion-of-foxn1-in-nod-scid-il2rg-mice-results-in-severe-immunodeficiency
#14
Xinru Wei, Yunxin Lai, Baiheng Li, Le Qin, Youdi Xu, Simiao Lin, Suna Wang, Qiting Wu, Qiubin Liang, Guohua Huang, Qiuhua Deng, Pentao Liu, Donghai Wu, Liangxue Lai, Yao Yao, Peng Li
Immunodeficient mice engrafted with either normal or cancerous human cells are widely used in basic and translational research. In particular, NOD/SCID/IL2rg(-/-) mice can support the growth of various types of human cancer cells. However, the hairs of these mice interfere with the observation and imaging of engrafted tissues. Therefore, novel hairless strains exhibiting comparable immunodeficiency would be beneficial. Recently, the CRISPR/Cas9 system has been used for efficient multiplexed genome editing. In the present study, we generated a novel strain of nude NOD/SCID/IL2rg(-/-) (NSIN) mice by knocking out Foxn1 from NOD/SCID/IL2rg(-/-) (NSI) mice using the CRISPR/Cas9 system...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28798065/self-organization-process-in-newborn-skin-organoid-formation-inspires-strategy-to-restore-hair-regeneration-of-adult-cells
#15
Mingxing Lei, Linus J Schumacher, Yung-Chih Lai, Wen-Tau Juan, Chao-Yuan Yeh, Ping Wu, Ting-Xin Jiang, Ruth E Baker, Randall Bruce Widelitz, Li Yang, Cheng-Ming Chuong
Organoids made from dissociated progenitor cells undergo tissue-like organization. This in vitro self-organization process is not identical to embryonic organ formation, but it achieves a similar phenotype in vivo. This implies genetic codes do not specify morphology directly; instead, complex tissue architectures may be achieved through several intermediate layers of cross talk between genetic information and biophysical processes. Here we use newborn and adult skin organoids for analyses. Dissociated cells from newborn mouse skin form hair primordia-bearing organoids that grow hairs robustly in vivo after transplantation to nude mice...
August 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28793165/norman-orentreich-the-father-of-hair-transplantation
#16
Noman Choudhry, Anshum Sood, Stephanie Steinweg
No abstract text is available yet for this article.
August 1, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28749199/hair-follicle-associated-pluripotent-hap-stem-cells
#17
Yasuyuki Amoh, Robert M Hoffman
Various types of stem cells reside in the skin, including keratinocyte progenitor cells, melanocyte progenitor cells, skin-derived precursors (SKPs), and nestin-expressing hair follicle-associated-pluripotent (HAP) stem cells. HAP stem cells, located in the bulge area of the hair follicle, have been shown to differentiate to nerve cells, glial cells, keratinocytes, smooth muscle cells, cardiac muscle cells, and melanocytes. HAP stem cells are positive for the stem-cell marker CD34, as well as K15-negative, suggesting their relatively undifferentiated state...
July 27, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28740409/hair-follicle-growth-by-stromal-vascular-fraction-enhanced-adipose-transplantation-in-baldness
#18
David Perez-Meza, Craig Ziering, Marcos Sforza, Ganesh Krishnan, Edward Ball, Eric Daniels
Great interest remains in finding new and emerging therapies for the treatment of male and female pattern hair loss. The autologous fat grafting technique is >100 years old, with a recent and dramatic increase in clinical experience over the past 10-15 years. Recently, in 2001, Zuk et al published the presence of adipose-derived stem cells, and abundant research has shown that adipose is a complex, biological active, and important tissue. Festa et al, in 2011, reported that adipocyte lineage cells support the stem cell niche and help drive the complex hair growth cycle...
2017: Stem Cells and Cloning: Advances and Applications
https://www.readbyqxmd.com/read/28736812/hair-transplantation-for-the-treatment-of-lichen-planopilaris-and-frontal-fibrosing-alopecia-a-report-of-two-cases
#19
You-Chen Serena Liu, Shiou-Hwa Jee, Jung-Yi Lisa Chan
The efficacy of current medical treatments for lichen planopilaris (LPP) and its variant, frontal fibrosing alopecia (FFA), both lymphocyte-mediated primary cicatricial alopecias, is limited. Hair regrowth from scar tissue is usually not possible. Although hair transplantation restores the hairline and increases hair density in patients with cicatricial alopecia, the timing of the transplantation is crucial. Here, we report two Chinese patients with LPP or FFA who underwent the follicular unit extraction method of hair transplantation after the diseases were stabilised with therapy, with satisfactory results for 3-4 years of follow up...
July 24, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28728330/hair-diameter-variation-in-different-vertical-regions-of-the-occipital-safe-donor-area
#20
Seon Sik Yun, Jae Hyun Park, Young Cheon Na
BACKGROUND: Little is known concerning hair diameter variation within the safe donor area for hair transplantation surgery. Thicker or thinner hair may be needed, depending on the recipient area, hairline design, and the purpose of surgery. METHODS: Twenty-seven patients (7 men and 20 women; mean age, 28 years; range, 20-47 years) were included in this study. The midoccipital point was used as the reference point on the horizontal plane at the upper border of the helical rim...
July 2017: Archives of Plastic Surgery
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