Determinants of Occipital Involvement in Males and Females with Pattern Hair Loss: A Retrospective Study

Background: Pattern hair loss (PHL) is the most common form of hair loss affecting both men and women. The occipital region, located at the back of the scalp, has been considered resistant to hair loss in PHL. It is often used as a donor site for hair transplantation procedures. However, evidence suggests that the occipital region may also be affected by PHL, although to a lesser extent compared to the frontal and vertex regions. Objective: To assess the levels and determinants of occipital involvement in PHL, focusing on gender and disease severity. Such data would enhance the comprehensive understanding of PHL progression and inform development of improved treatment strategies. Methods: This retrospective study involved 1993 adults (1000 males, 993 females) following for PHL at a specialized hair clinic in Jeddah, Saudi Arabia. Any patient who had hair transplantation in the past and any male who had balding areas (Hamilton-Norwood scales 4 to 7) at the initial consultation was excluded. The primary outcome was occipital involvement, defined as >10% thin hairs in the trichometry assessments of the occipital region. Additional data included patients age, treatment status, disease severity, and other trichometry parameters. Results: The prevalence of occipital involvement was found to be 23.8% overall, significantly more frequent in females (35.6%) than males with early PHL (Hamilton-Norwood scales 2 and 3) (12.1%) (p Conclusion: This study underscored the relevance of gender and disease severity in occipital involvement in PHL. Females had significantly higher rates of occipital involvement, suggesting that gender differences are critical in understanding PHL progression. Future research should aim to validate these findings, with an aim to refine therapeutic and surgical approaches to improve patient outcomes.

Isolation and Identification of Fungi That Cause Hair Loss (Alopecia)

Due to the crowded number of female students in a very narrow place, the fact that the college is for females only, and the fact that some of the female students live in the internal sections of the student residence, as well as the crowded number there, and as a result of the presence of the head covering or what is known as the Islamic veil on the head, which covers the hair of the head, which provides a suitable hot humid atmosphere 100% of fungal growth in the scalp of female students. Therefore, it is necessary to know the widespread fungal species that contaminate the scalp. In other research, we learn about the antifungals that should be used to reduce fungal infections in college employees. The study was carried out to identify the presence and spread of fungi that cause hair loss. The study was conducted on some students of the College of Education for Girls/University of Shatra for the period from 1/11/2021 to 1/12/2021, where 100 hundred hair samples were collected from (the scalp) from different ages in different educational stages, as random samples were taken after asking the student whether she suffers from hair loss or not, and studying the presence and spread of fungi in terms of density and type, after transferring them to the microbiology laboratory-College of Education for Girls using sterile sample collection bags. The current results showed that the fungal species E. flocculosum is the most common among them, followed by the fungal species C. carrionii, then the rest of the genera are as follows: E. flocculosum, Basisdioplus, Aspergillus terreud Hormderndrum Rhodotorula, Bipolaris, Aspergillus, Phoma, Rhizopus, Blastomyces, Microsporum, Sporothrix, Exophiala jeanselmei, Neoscytalidium Aeremonium Cladophialophora carrionii, Paecilomyces, Exophiala dermatitidis, Geotrichum, Volvariella, Rhizomucor, Saksmaea vassiformis, Candida albicans, Chrysosporium, Dimiatum.

A New Mechanism of Hinokitiol as An Active for Hair Loss Prevention

Hair loss and gray hair are the ultimate manifestations of scalp and hair aging.Improving metabolic activities in cells is a fundamental for anti-aging while autophagy activity of cell is a key measure.Hinokitiol,one of the more than 30 quasi-drug actives approved in Japan in the field of hair tonic products has two known mechanisms for its effectivities,i.e.promoting cell activity and anti-microbial.Through this study,we identified a new mechanism of hinokitiol for hair loss prevention,i.e.promotion of autophagy and mitophagy activities of dermal papilla cells.

Comprehensive Overview and Treatment Update on Hair Loss

Hair loss is one of the most common complaints among all patients consulting a dermatologist and is usually associated with severe psychological disturbances, distress and symptoms of depression. [1-3]. It can be temporary or long lasting. Diagnosis of hair loss is based on detailed clinical history, physical exam, clinical diagnostic tests, laboratory testing, and scalp biopsy, which may be necessary to confirm some diagnoses. This article presents an overview of the most common clinical causes of hair loss and provides updated information on the current available therapeutic options for these disorders.

Autozygosity Mapping by Genome-wide Single Nucleotide Polymorphism Array Identifies a Novel Homozygous HR Mutation in a Consanguineous Family with Universal Hereditary Hair Loss

Objective:Isolated hereditary hypotrichosis is caused by mutations in as many as 11 different genes.The conventional mutation detection strategy consists of sequencing of individual candidate genes separately,a time consuming and costly approach.In this study,we perform genome-wide single nucleotide polymorphism(SNP)array to identify candidate genes of hereditary hypotrichosis.Methods:A consanguineous family with two patients with hereditary hypotrichosis was enrolled,and autozygosity mapping by genome-wide SNP array was utilized to identify candidate genes.Results:Autozygosity mapping delineated runs of homozygosity,and alignment of the 11 genes identified the hairless(HR)gene as the candidate gene.Nucleotide sequencing revealed a novel homozygous mutation c.381delT,p.Ser127ArgfsTer40.Conclusion:This study illustrates how autozygosity mapping by a high-density SNP array streamlines mutation detection in heritable skin diseases.

Self-Reported Hair Loss Following COVID-19: An Observational Study

Objective: COVID-19 has been significantly associated with both psychosocial stress and physiologic stress, both of which are known to trigger telogen effluvium. This study was performed to estimate the prevalence of hair loss among patients with COVID-19 and to determine the correlation of the severity of COVID-19 with the severity of hair loss.Methods: Data were collected through a self-administered electronic questionnaire that was distributed among social media platforms. Participants were invited to complete the survey using a convenience sampling technique. A multiple response dichotomies analysis and chi-square test of independence were used to analyze data.Results: Among 420 participants who reported a positive PCR result of SARS-CoV-2, 77.6% reported hair loss after COVID-19 development. Notably, the onset of hair loss was within 3 weeks of COVID-19 development in 29% of participants. Most of the participants reported that the duration of hair loss was up to 6 months, and hair regrowth was noticed within 1 year after COVID-19 development. Patients who were admitted to the hospital, who experienced respiratory difficulties, who had lost weight due to COVID-19, and who experienced symptoms for longer than 10 days were significantly more prone to experience severe hair loss following COVID-19 (P < 0.001).Conclusion: This study demonstrated a high frequency of self-reported hair loss after the development of COVID-19. Interestingly, even patients with mild COVID-19 symptoms were significantly more prone to experience moderate hair loss. Unique to COVID-19 infection, the onset of hair loss following the development of COVID-19 was within 3 weeks in one-third of the participants.

EXPERIMENTAL STUDY OF COCHLEAR HAIR CELL LOSS IN THE GUINEA PIG

The damage to spiral organs related to age and sex in guinea pigs was studied by the surface preparation technique. Hair cell loss of spiral organs of the following four age groups: 8month, 1, 2, and 2.5-year old pigs, was assessed. Each group was divided Into two subgroups according to different sexes. The decrease of hair cell population was linearly related to age, but not related to sex. The damage rate was greater in outer hair cells than in inner hair calls. In all of animals of different ages and both sexes, outer hair cell loss was prominent at the apex of cochlea. Less damage to outer hair cell was found at the base of cochlea. Damage to inner hair cell was also increased with age, but to a lesser extent.

Hair growth-promotion effects and antioxidant activity of the banana flower extract HappyAngel^(■):double-blind, placebo-controlled trial

Banana flowers contain various bioactive components, including several antioxidants with anti-inflammatory effects. However, it is unclear whether they can reduce and prevent hair loss. This study examines the effect of banana flower extracts on preventing hair loss and strengthening hair roots. The banana flower extract(HappyAngel^(■))was used to treat human hair follicle dermal papilla cells(HFDPCs)and the expression of reactive oxygen species(ROS), dihydrotestosterone(DHT), and hair-related genes(SRD5A1, SRD5A2, AR, and KROX20)were monitored. Fifty subjects were divided into a placebo group and a banana flower group. The experimental group consumed banana flower extract daily for twelve weeks and then underwent hair testing, hair-related genes analysis, collection of hair loss, and questionnaires. The results showed that the banana flower extract significantly increased hair cell growth and decreased the expression of ROS, DHT, and hair follicle growth inhibition-related SRD5A1, SRD5A2, and AR genes, and significantly increased the expression of hair growth-related KROX20 gene in HFDPCs. Consuming banana flower extract for twelve weeks increased the hair root diameter and reduced hair loss and scalp redness compared to the placebo group. Thus, banana flower extract(HappyAngel^(■))can stimulate hair growth and inhibit the activation of hair loss genes.

Polyphenol-Rich Olive Mill Wastewater Extract and Its Potential Use in Hair Care Products

In this work, the influence of phenol-enriched olive mill wastewater (OMWW) extract on hair growth was investigated in vitro on human follicle dermal papilla cells. OMWW has already shown great potential for use in skincare products, and its high polyphenol content is predestined to have a positive effect on hair growth. The studies included caffeine, a positive modulator of hair growth, and dihydrotestosterone, which causes hair loss in vivo, as controls. The impact of the investigated compounds on hair growth was evaluated by studies on cell viability and proliferation, the release of growth factors (insulin-like growth factor-1 and vascular endothelial growth factor), and the reduction of reactive oxygen species formation. OMWW showed a positive influence on the proliferation of the human follicle dermal papilla cells. Moreover, the extract leads to a significantly increased secretion of insulin-like growth factor-1, and a considerable reduction in reactive oxygen species formation was observed. Overall, our results show that the investigated phenol-enriched OMWW extract is a promising ingredient for hair care to improve hair growth, prevent hair loss due to oxidative stress and maintain a healthy scalp.

Safety and Efficacy of Deeply Rooted^®Nutraceutical for Hair Growth in Women

Hair loss can significantly affect quality of life. Patients seeking treatment for hair loss find that many surgical or medication options involve significant risks or side effects. DEEPLY ROOTED® is a nutritional supplement that combines botanical and natural ingredients with the goal of effectively reducing hair loss and stimulating hair growth—without the side effects of many standard treatments. DEEPLY ROOTED’s active ingredients have both anti-inflammatory and adaptogenic properties, and inhibit dihydrotestosterone without the use of hormones, drugs, or industry by-products. This 3-month prospective study evaluates the effectiveness of DEEPLY ROOTED® for the prevention of hair loss. Healthy female subjects complaining of hair loss were enrolled, and supplied with three months of DEEPLY ROOTED®, without other compensation. The primary endpoint was a significant increase in hair growth. This was measured using anonymously collected patient data to evaluate hair growth and quality, as well as blinded Investigator hair assessment data. Patients who ingested DEEPLY ROOTED® over a three-month period reported noticeable improvement of hair growth (91%), increased hair volume (86%), and improved hair quality (86%). Subjects were noted to exhibit an increase in the number of new hairs, hair thickness and scalp coverage. No significant adverse effects were reported. DEEPLY ROOTED® safely helped over 90% of otherwise healthy women with self-perceived hair thinning to improve hair quality and quantity. The unique combination of botanical and natural ingredients provided a drug-free alternative for the management of hair loss.

PTEN inhibitor bisperoxovanadium protects against noise-induced hearing loss

Studies have shown that phosphatase and tensin homolog deleted on chromosome ten(PTEN)participates in the regulation of cochlear hair cell survival.Bisperoxovanadium protects against neurodegeneration by inhibiting PTEN expression.However,whether bisperoxovanadium can protect against noise-induced hearing loss and the underlying mechanism remains unclear.In this study,we established a mouse model of noise-induced hearing loss by exposure to 105 dB sound for 2 hours.We found that PTEN expression was increased in the organ of Corti,including outer hair cells,inner hair cells,and lateral wall tissues.Intraperitoneal administration of bisperoxovanadium decreased the auditory threshold and the loss of cochlear hair cells and inner hair cell ribbons.In addition,noise exposure decreased p-PI3K and p-Akt levels.Bisperoxovanadium preconditioning or PTEN knockdown upregulated the activity of PI3K-Akt.Bisperoxovanadium also prevented H_(2)O_(2)-induced hair cell death by reducing mitochondrial reactive oxygen species generation in cochlear explants.These findings suggest that bisperoxovanadium reduces noise-induced hearing injury and reduces cochlear hair cell loss.

The potential of miR-183 family expression in inner ear for regeneration,treatment,diagnosis and prognosis of hearing loss

miRNA-183 family, in normal biology, is expressed in a harmonious and stable manner in the neurosensory organs and cells. Studies have also shown that miRNA-183 family, in different pathways, affects the neurosensory development, maintenance, survival and function. In addition, it has potential neuroprotective effects in response to neurosensory destructive stimulations. miRNA-96 mutation causes hereditary deafness in humans and mice, and therefore affects the inner ear activity and its maintenance. Certain roles have been identified for mi R-96 in the maintenance and function of the inner ear. The comparison of the target genes of family-183 in transcriptomes of newborn and adult hair cells shows that hundreds of target genes in this family may affect development and maintenance of the ears. Identifying the genes that are regulated by miRNA-183 family provides researchers with important information about the complex development and environmental regulation of the inner ear, and can offer new approaches to the maintenance and regeneration of hair cells and auditory nerve.

Inner ear hair cell regeneration A look from the past to the future

Most recent studies on regeneration of inner ear hair cells focus on use of stem cells, gene therapy and neurotrophic factors. Cochlear gene therapy has been successfully used in the treatment of neu- rosensory hearing loss. This suggests that cochlear hair cell regeneration is possible. The objective of this paper is to review research and clinical application of inner near hair cell regeneration.

毛发移植专业术语规范专家共识(2024版)

为推动毛发移植技术的发展,特别是标准的建立,在整形美容专业国家级医疗质量控制中心的支持下,由毛发移植亚专业组牵头,邀请全国毛发移植领域的专家,在整理相关文献和专著的基础上,形成“毛发移植专业术语规范专家共识”讨论稿,以改良德尔菲法和共识会议相结合的方法,共同就毛囊解剖及分区、毛囊获取、毛囊分离与毛囊质量、毛囊种植等问题进行了多轮磋商,最终达成54条一致性意见。本共识兼顾了毛发移植技术应用中各专业名词的中英文本意及专业特性,突出了毛发移植技术特色和优势,传承精华、守正创新,以期为国内外从事毛发移植的临床研究者提供参考,更好地促进专业规范与发展。

Correlation of PDCD5 and Apoptosis in Hair Cells and Spiral Ganglion Neurons of Different Age of C57BL/6J Mice

This study examined the expression pattern of programmed cell death 5 (PDCD5) in co-chlear hair cells and spiral ganglion neurons (SGNs) and its association with age-related hearing loss in mice.Sixty C57BL/6J (C57) mice at different ages were divided into four groups (3,6,9 or 12 months).PDCD5 expression was detected by using immunohistochemistry,real-time PCR and Western blot.Morphological change of the cochleae was also evaluated by using immunoassay.The results showed that the expression of PDCD5 had a gradual increase with ageing in both protein and RNA levels in C57 mice,as well as gradually increased apoptosis of cochlear hair cells and SGNs.In addition,we also found that caspase-3 activity was enhanced and its expression was enhanced with ageing.It is implied that overexpression of PDCD5 causes the increase in caspase-3 activity and the subsequent increase of apoptosis in cochlear hair cells and SGNs,and thereby plays a role in the pathogenesis of presbycusis.Thus,PDCD5 may be a new target site for the treatment and prevention of age-related hearing loss.

THE GENETIC-INDUCED HEARING lOSS CAN BLOCK THE EFFECT OF NOISE TRAUMA IN WAlTZING GUINEA PIG

The waltzing guinea pig may be a good model to investigate if genetic factor can change the sensitivity in noise-induced hearing loss. A total of 34 waltzig guinea pigs were studied and we found that there is no any significant increased sensitivity to noise trauma if the age-induced hearing loss was considered in waltz-ing guinea pig.

吡咯烷基二氨基嘧啶氧化物在防脱洗护产品中的应用

吡咯烷基二氨基嘧啶氧化物(可比落,Kopyrrol)是近几年市场上推出的防脱、生发原料,其作为化学防脱成分效果明确且安全性高,具有良好的应用前景。综述了吡咯烷基二氨基嘧啶氧化物在防脱洗护产品中的研发现状,并重点梳理了相关专利技术在防脱洗护产品研发、保护中的应用进展,以期为吡咯烷基二氨基嘧啶氧化物在防脱产品中的进一步深入研究提供参考。

电针治疗调节miR-183对噪声性耳聋模型耳蜗毛细胞VEGF表达的影响

目的:探讨电针治疗调节miR-183对噪声性耳聋(NIHL)模型耳蜗毛细胞血管内皮生长因子(VEGF)表达的影响与作用机制。方法:将雄性SD大鼠随机均分为空白对照组、NIHL组、NIHL+针刺组、NIHL+针刺+腺病毒(AAV)-NC组和NIHL+针刺+AAV-sp-miR-183组。针刺组取中渚穴进行刺激。利用AAV载体在NIHL大鼠中敲低miR-183。各组大鼠进行听觉脑干反应(ABR)评估与毛细胞计数。qRT-PCR分析大鼠耳蜗组织miR-183水平。蛋白质免疫印迹测定VEGF水平。结果:与对照组相比,NIHL组耳蜗组织中miR-183的水平降低,ABR阈值差与毛细胞的缺失率升高,耳蜗毛细胞VEGF表达的水平升高(P<0.05)。与NIHL组相比,NIHL+针刺组耳蜗组织中miR-183的水平上升,ABR阈值差与毛细胞的缺失率降低,耳蜗毛细胞VEGF表达的水平升高(P<0.05)。NIHL+针刺+AAV-sp-miR-183组与NIHL+针刺+AAV-NC组相比,miR-183的水平降低,ABR阈值差与毛细胞的缺失率升高,耳蜗毛细胞VEGF表达的水平降低(P<0.05)。结论:电针治疗可以通过上调miR-183进而促进NIHL大鼠耳蜗毛细胞VEGF的表达,降低噪音诱导的NIHL大鼠ABR阈值差增高与毛细胞损伤。

女性型脱发患者的血清维生素D水平及与雄激素的相关性研究

目的:探究女性型脱发的血清维生素D水平以及与雄激素的相关性,为女性型脱发的发病机制及治疗选择提供新的线索。方法:分析皮肤科门诊就诊的70例女性型脱发患者与体检中心招募的65例健康人的血清维生素D,分析其与严重程度、人口学特征、生活习惯以及雄激素的相关性。结果:女性型脱发患者的平均维生素D水平(13.59±5.82)ng/ml,健康人群的平均维生素D水平为(15.94±6.89)ng/ml(P<0.05)。女性型脱发患者维生素D水平与性激素结合球蛋白呈正相关,与游离睾酮呈负相关(P<0.05)。性激素结合球蛋白降低或游离睾酮升高的患者维生素D水平明显降低(P<0.05)。但暂未发现女性型脱发患者的维生素D水平与严重程度、人口学特征、生活习惯的相关性。结论:女性型脱发较健康人群维生素D水平明显降低,提示维生素D降低可能是女性型脱发的发病因素之一。性激素结合球蛋白降低、游离睾酮升高与维生素D水平降低存在的相关性,可能是维生素D缺乏导致女性型脱发的机制之一,有待进一步研究验证。

5%米诺地尔联合口服抗雄药物治疗雄激素性秃发早期脱发现象的初步探讨

目的:探讨5%米诺地尔联合口服抗雄药物治疗雄激素性秃发(AGA)早期的脱发现象,观察16周内头发脱落数量及特征。方法:收集AGA患者治疗期间(1~16周)脱发量数据,探究脱发量的变化特点。结果:67例AGA患者使用药物后,第2~8周脱发量相对第1周(基线)均明显增加(P<0.05);且分别与第1周和第2周比较,第3周均呈现出脱发量明显增加的情况(P<0.05),由此将脱发量变化百分比>68.22%(第3周脱发量变化百分比的均值)的情况定义为“脱发明显”。据此将患者分为脱发明显组39例(58.21%)和非脱发明显组28例(41.79%)。脱发明显组中,患者脱发量明显增加发生于第3~5周,随后第12周降至基线水平。脱发明显组中脱发量的时间变化、严重程度在男女中差异均无统计学意义(P>0.05),仅20.51%患者每周脱发量变化百分比中的最大数值(简称为最大百分比)较第1周>3倍。结论:“脱发明显”多发生于AGA患者用药后第3~5周,约于第12周降至第1周水平,持续时间短且男女间无明显差别。“脱发明显”是药物作用的一种表现,也预示着毛囊可能由休止期转入生长期的正常过程。