Effect of henna and roselle extracts on pathogenic bacteria

ObjectiveTo investigate the antibacterial effects of water and ethanolic extracts of henna leaves and roselle calyxes against pathogenic bacteria isolated from domestic wastewater.MethodsThe antimicrobial activity was determined in the extracts using agar disc diffusion method. The antibacterial activities of extracts (2.5%, 5.0% and 10.0% w/v) of both henna and roselle were tested against one Gram-positive Bacillius subtilis; two Gram-negative Escherichia coli, Pseudomonas aeruginosa human pathogenic bacteria.ResultsEthanolic extracts had more antimicrobial activity than water extracts. Ethanolic extract of roselle had the highest antibacterial activity against all tested organisms, followed with ethanolic extract of henna. Pseudomonas aeruginosa was the most sensitive bacteria to plant extracts.ConclusionThe results of this study suggested that roselle contains more phyto-chemicals with antimicrobial activity than henna on the bacteria strains under study, and these phyto-chemicals were more effective when extracted by ethanol rather than water.     

A comparison of the effects of Lawsonia inermis (Iranian henna) and clotrimazole on Candida albicans in rats

Background

Candida albicans may cause vaginal infections in women. The aim of this study was to compare the antifungal effect of Lawsonia inermis with that of clotrimazole on rats.

Determination of lead,cadmium and nickel in hennas and other hair dyes sold in Turkey

The concentrations of lead, nickel and cadmium in various hennas and synthetic hair dyes were determined by high-resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GFAAS). For this purpose, 1 g of sample was digested using 4 mL of hydrogen peroxide (30%) and 8 mL of nitric acid (65%). The digests were diluted to 15 mL and the analytes were determined by HR-CS GFAAS. All determinations of Pb and Cd were performed using NH₄H₂PO₄ as a modifier. The analytes in hair certified reference materials (CRMs) were found within the uncertainty limits of the certified values. In addition, the analyte concentrations added to hair dye were recovered between 95 and 110%. The limits of detection of the method were 48.90, 3.90 and 12.15 ng g⁻¹ for Pb, Cd and Ni, respectively and the characteristic concentrations were 8.70, 1.42 and 6.30 ng g⁻¹, respectively. Finally, the concentrations of the three analytes in various synthetic hair dyes with different brands, shades and formulae as well as in two henna varieties were determined using aqueous standards for calibration. The concentrations of Pb, Cd and Ni in hair dyes were in the ranges of LOD-0.56 μg g⁻¹, LOD-0.011 ng g⁻¹ and 0.030–0.37 μg g⁻¹, respectively, whereas those in the two hennas were 0.60–0.93 μg g⁻¹, 0.033–0.065 ng g⁻¹ and 0.49–1.06 μg g⁻¹, respectively.     

Evaluation of wound healing activity of henna,pomegranate and myrrh herbal ointment blend

This study assessed the wound healing potential and antimicrobial activity of henna, pomegranate and myrrh extract formulations and their blend in excision, and dead space wound models in rats in comparison to a marketed ointment (gentamycin). The natural extracts were used in ointment formulations alone or in a combination of three extracts at a total concentration of 15% w/w in medications. The percent of wound contraction in case of henna, myrrh, pomegranate, the blend and gentamycin (10?mg/kg) were 85.90–98.5%, 88.35–99.52%, 93.55–100%, 97.30–100%, and 90.25–100% from days 16 to 20, respectively. The blended formulation showed the highest increase in the percent of wound contraction and decrease in the epithelisation period compared to other formulations and showed comparable results to the standard ointment. The histological studies of excision biopsy at day 24 showed healed skin structures with normal epithelisation, the restoration of adnexa and fibrosis within the dermis in all of the formulation- and gentamycin-treated groups while the control group lagged behind in the formation of the amount of ground substance in the granulation tissue. The formulations showed antimicrobial activity against Candida, Staphylococcus aureus, mucous membrane infections and E. coli topical infections. The study proved the wound healing potential and antimicrobial activity of the herbal extract.     

Henna (Lawsonia inermis Linn.) induced haemolytic anaemia in siblings

Henna is a traditional cosmetic agent and is used worldwide. It is used worldwide not only as a cosmetic agent to stain the hair, skin and nails but also is applied to the body on lesions in the treatment of seborrheic dermatitis or fungal infections. Different pathologies have been described as caused by henna. The aim of this study is to draw attention to the adverse effects of henna, applied over the whole body, observed in glucose-6-phosphate dehydrogenase (G6PD) enzyme deficient siblings. In the present paper, we report on two siblings with G6PD deficiency who developed haemolytic anaemia following topical application of henna to their whole body to treat skin lesions. Their parents were also found to be G6PD deficient. Even though anti-inflammatory, analgesic and antipyretic effects of henna have been shown, it may cause severe side-effects in some cases. For this reason, especially, in the regions where G6PD enzyme deficiency is common, people should be informed about the side-effects of topical henna application and clinicians should be aware of these manifestations.     

无张力疝修补术治疗急性嵌顿性疝210例分析

目的探讨无张力疝修补术在急性腹股沟嵌顿疝中临床应用的疗效和可行性。方法回顾性分析2005年12月至2012年11月210例急性腹股沟嵌顿疝行一期无张力疝修补术的临床资料。手术方式包括网塞加补片修补法（Rutkow）42例、超普网塞修补法（UPP）138例、超普疝修补装置（UH3）39例,茅用SPSS13．0软件进行统计分析,计数资料比较用,检验,P〈0．05表示有统计学意义。结墨腹股沟嵌顿性癌患者渗出液细菌培养结果显示,嵌够时间超过12h的162例病例,渗出液绌菌培养阳性38例,阳性率23．5％;嵌顿时间小于12h的48例病例的细菌检出阳性2例,阳性率4．2％,两组之间差异有统计学意义（χ^2=4．217,P〈0．05）。术后总并发症发生率2．9％（6／210,血肿3例、出血1例、感染2例,切口感染均为糖尿病患者,无深部补片感染,给予敞开切口引流换药后愈合）,3种手术方式并发症发生率差异无统计学意义（χ^2=0．188,P〉0．05）。210例嵌顿疝患者行一期修补术后1年内复发者1例,复发率为0．5％。结论选择合理手术方法、熟悉腹股沟区局部解剖、熟练掌握疝修补技术,无张力疝修补术在急性腹股沟嵌顿疝中的应用是可行的、安全的。     

海娜花抗真菌有效成分的提取工艺优化与抑菌效力研究

目的 研究海娜花抗真菌有效成分的提取工艺优化与抑菌效力。方法 分别采用回流提取法与超声提取法提取海娜花。采用高效液相色谱作定量分析,流动相A为磷酸二氢铵30 mmol/L、B为甲醇（用磷酸调pH=3）,梯度洗脱,温度为30℃,进样量为20μL,色谱柱为Agilent Zorbax SB-C18柱（250 mm×4.6 mm,5μm）。考察溶剂、温度、时间对有效成分提取效果的影响,确定最佳提取工艺。采用美国临床实验室标准化委员会（NCCLS）产孢丝状真菌抗真菌药敏试验方案M38-A,以白色念珠菌为模型菌,对海娜花提取物的抗真菌效力进行初步研究。结果与结论 回流提取法的最佳工艺条件为10倍量70%乙醇溶液,100℃下回流提取1.0 h,共提取3次。超声提取法的最佳工艺条件为10倍量70%乙醇溶液,50℃下超声提取1.5 h,共提取3次。海娜花提取物对白色念珠菌的最低抑菌浓度（MIC）为320～640μg/mL。     

Effets indésirables des soins capillaires chez les utilisateurs

The panoply of products used by hair care professionals to wash, dye, shape and beautify hair is not entirely free from adverse events. Such effects consist mainly of irritation dermatitis and allergic contact eczema affecting the scalp, as well as the back and front of the neck, the forehead and periorbital areas, and the cheeks. The most frequently cited allergens include paraphenylenediamine (PPD) in hair dyes, glycerol monothioglycolate (GMTG) in acid perm lotions, and ammonium persulphate in hair lighteners (the latter substance being responsible primarily for contact urticaria). However, care should also be paid to other allergens such as cocamidopropyl betaine among surfactants, as well as certain components in hair formulations such as preservatives and fragrances (as well as minoxidil, frequently used by patients).     

海娜毒理学安全性评价研究进展

海娜是散沫花(Lawsonia inermis L.)干燥叶子的别称,海娜作为"纯天然"染发剂原料越来越受到大众青睐,但其毒性的相关报道相对较少,该文从海娜的一般毒性(急性、慢性和亚慢性毒性)到特殊毒性(致癌、致畸和致突变性)进行综述,结果表明,海娜提取物腹腔注射毒性大于经口毒性,散沫花根提取物的毒性大于种子毒性,叶子(即海娜)提取物毒性最小;经透皮吸收的方式,海娜可能对甲状腺、肾脏和卵巢毒性较大;此外,海娜有轻微短暂的眼刺激性、亚慢性毒性和致畸性,但可能不会导致DNA损伤;海娜产品由于添加了化学物质对苯二胺,可能有致突变性,但尚不认为海娜具有致突变性。     

Dermatitis alérgica de contacto a parafenilendiamina por tatuajes con henna en población pediátrica

Introduction

Henna tattoos are a very common practice in the adolescent population. Henna is very often admixed with para-phenylenediamine (PPDA) to improve the appearance of the tattoo. PPDA is a potent allergen, and is a frequent cause of allergic contact dermatitis (ACD).