Model prediction of inactivation of Aeromonas salmonicida grown on poultry in situ by intense pulsed light

The aim of this study was to evaluate the factors influencing the inactivation effect of intense pulsed light(IPL)on Aeromonas salmonicida grown on chicken meat and skin,and to further develop prediction models of inactivation.In this work,chicken meat and skin inoculated with meat-borne A.salmonicida isolates were subjected to IPL treatments under different conditions.The results showed that IPL had obvious bactericidal effect in the chicken skin and thickness groups when the treatment voltage and time were 7 V combined with 5 s.In addition,the lethality curves of A.salmonicida were fitted under IPL conditions of 3.5-7.5 V.The comparison of statistical parameters revealed that the Weibull model could best fit the mortality curves and could accurately predict the mortality dynamic of A.salmonicida grown on chicken skin.And further a secondary model between the scale factor b and the treatment voltage in Weibull model was established using linear equations,which determined that the secondary model could accurately predict the inactivation of A.salmonicida.This study provides a theoretical basis for future prediction models of Aeromonas,and also provides new ideas for sterilization approaches of meat-borne Aeromonas.

The Effect of Intense Pulsed Light Treatment for Chronic Hordeolum

Objective To evaluate the effect of intense pulsed light(IPL)in the treatment of chronic hordeolum.Methods Patients with chronic hordeolum who underwent IPL treatment were enrolled in this study.According to the severity of hordeolum,the patients were treated with IPL 3 to 5 times.Patients’satisfaction and visual analog scale scores for ocular discomfort symptoms before and after treatment were collected.The number,congestion,long diameter,short diameter and area of nodules were also recorded and measured.Finally,eyelid margin signs,meibum quality,meibomian gland expressibility,meibomian gland dropout,tear meniscus height,and corneal fluorescein staining were scored.Results 20 patients were enrolled in this study.The eyelid margins were congestive and swollen,with blunt rounding or irregularity.The meibum was cloudy or toothpaste-like.The meibomian gland expressibility,meibomian gland dropout and tear meniscus height were reduced.The cornea showed scattered fluorescein staining.After treatment,score of visual analog scale,congestion and size of nodules were significantly reduced.Eyelid margin signs,meibum quality,meibomian gland expressibility,tear meniscus height and corneal fluorescein staining scores were improved.Meibomian gland dropout had no significant change.No side effects occurred during treatment.Conclusions IPL is beneficial for the treatment of chronic hordeolum.

Intense Pulsed Light Therapy for Patients with Meibomian Gland Dysfunction and Ocular Demodex Infestation

To observe the clinical changes of meibomian gland dysfunctipn(MGD)and ocular Demodex infestation after intense pulsed light(IPL)treatment to further examine the mechanism of IPL treating patients with MGD and ocular Demodex infestation.The medical records of 25 patients(49 eyes)with MGD treated with IPL,were retrospectively examined to determine outcomes.Associated ocular-surface parameters(ocular surface disease index,OSD1;lipid layer thickness,LLT;noninvasive first breakup time,NIF-BUT;noninvasive average breakup time,NIAvg?BUT;tear film breakup area,TBUA;Schirmer I Test,SIT;corneal fluorescein staining,CFS),eyelid margin abnormalities,meibum quality and expressibility,MG morphological parameters(macrostructure and microstructure),and the number of Demodex infestation were examined before and after treatment.The MG microstructure and the Demodex infestation were examined via in vivo confocal microscopy(IVCM).The results showed that there were statistically significant differences in associated ocular-surface parameters(all P<0.05)before and after IPL treatment,except SIT(P=0.065).Eyelid margin abnormalities,meibum quality and expressibility obviously improved in upper and lower eyelid after IPL treatment(all P<0.0001).MG macrostructure(MG dropouts)decreased in upper(P=0.002)and lower eyelid(P=0.001)after IPL treatment.The nine parameters of MG microstructure in upper and lower eyelid all distinctly improved after IPL treatment(all P<0.0001).The mean number of Demodex mites on the upper lid margin(6.59±7.16 to 3.12±3.81/9 eyelashes)and lower lid margin(2.55±2.11 to 1.29±1.53/9 eyelashes)significantly reduced after IPL treatment(all P<0.0001).The Demodex eradication rate was 20%(8/40)in upper lid margin and 34.15%(14/41)in lower lid margin.These findings indicate that IPL shows great therapeutic potential for patients of MGD and ocular Demodex infestation.

Comparison of anti-inflammatory effects of intense pulsed light with tobramycin/dexamethasone plus warm compress on dry eye associated meibomian gland dysfunction

AIM: To compare the anti-inflammatory effects of intense pulsed light(IPL) with tobramycin/dexamethasone plus warm compress through clinical signs and cytokines in tears.METHODS: Eighty-two patients with dry eye disease(DED) associated meibomian gland dysfunction(MGD) were divided into two groups. Group A was treated with IPL, and Group B was treated with tobramycin/dexamethasone plus warm compress. Ocular Surface Disease Index(OSDI), tear film breakup time(TBUT), corneal fluorescein staining(CFS), meibomian gland expressibility(MGE), meibum quality, gland dropout and tear cytokine levels were evaluated before treatment, 1 wk and 1 mo after treatment. RESULTS: TBUT in Group A was higher(P=0.035), and MGE score was lower than Group B at 1 mo(P=0.001). The changes of interleukin(IL)-17 A and IL-1β levels in tears were lower in Group A compared with that in Group B at 1 wk after treatment(P=0.05, P=0.005).CONCLUSION: Treatment with IPL can improve TBUT and MGE and downregulate levels of IL-17 A and IL-1β in tears of patients with DED associated MGD better than treatment with tobramycin/dexamethasone plus warm compress in one-month treatment period.

Novel intense pulsed light-photodynamic therapy strategy in the treatment of facial actinic keratoses concomitant with rosacea

Rosacea presents as transient or persistent erythema,papules,pustules,fAushing,and telangi-ectasia on the middle of the face,which has some clinical similarity with act inic keratosis(AK).These two conditions can coexist in the same patient.Dermoscopy and reflect ance confocal microscopy(RCM)could be useful methods for diagnosis and monitoring treatment efficacy.Novel intense pulsed light-photodynamic therapy(IPL-PDT)may have better tolerance and curative effect than traditional red-light 5-aminolevulinic acid photodynamic therapy(ALA-PDT).Herein,we present a case of facial AKs concomitant with rosacea where combination therapy of novel IPL-PDT and oral minocycline was effective in that AK lesions were eliminated and the patient's facial erythema and telangiectasia were significantly improved.

Semi-Quantitative Histological Analysis of the Effect of Intense Pulsed Light (IPL) and Carbon Dioxide (CO₂) Intradermic Injection on Fibroblast and Collagen Proliferation in the Skin of Wistar Rats

Background: In recent years, so-called “non-ablative rejuvenation” has been carried out with the use of lasers or intense pulsed light (IPL) to stimulate collagen production by dermal fibroblasts. Intradermal infusion of CO2 stimulates fibroblasts and the synthesis of collagen and elastin, contributing to the retraction of the skin and tissue rejuvenation. Objectives: To evaluate the effects of IPL and the intradermal infusion of CO2 on fibroblast proliferation and collagen in the skin of female rats. Methods: Sixteen adult female Wistar rats were divided into two groups of eight animals. Group 1 underwent IPL and group 2 underwent intradermal CO2 infusion. There was a total of 8 weeks of treatment. We conducted a punch in each animal before any procedure (T0), another punch in the middle of treatment at 4 weeks post-procedure (T1) and a punch at the end of treatment at 8 weeks post-procedure (T2). The cells involved in inflammation, fibrosis and vascularization of the injured tissue by histopathology were analyzed. Results: There was statistically significant fibroblast proliferation and collagen proliferation noted when analyzing all 16 animals together and also when considering the two study groups separately. In both groups, the greatest proliferation of fibroblasts coincided with periods of increased collagen production. Conclusion: Both IPL and intradermal CO2 infusion stimulated fibroblast and collagen proliferation in the skin of the rats studied.

The Effect of Mesobotox Together with Intense Pulsed Light on Facial Wrinkles and Erythema

Facial ageing is a gradual process which could be due to intrinsic and extrinsic causes, it ultimately results in the appearance of gravity-induced tissue ptosis, wrinkles, epidermal and dermal atrophy, dryness, senile lentigo, flushing, telangiectasia, and enlarged pores. Mesobotox treatment is a technique of microinjections of diluted Botulinum toxin type A (BTX) to preserve the facial mobility in order to preserve the natural beauty. BTX treatment enhances the aesthetic improvements attained with IPL. Ten patients of age ranging between 40 - 60 years old ( mean 45±10.3 years) with skin type ranging between (III - V) were treated using BTX and Intense Pulsed Light (IPL) using cutoff filter 550 nm with a fluence of 25 J/cm2 together as a combination therapy. All patients received standard IPL treatment and were assigned to receive eight 0.1 mL intradermal injections of BTX in each cheek (8 U total dose). Vertical lines within the forehead also received five 0.1 mL intradermal injections of BTX. Small wrinkles and fine lines, erythema, apparent pore size, skin texture, and overall appearance were evaluated after one week. A significantly higher proportion of patients showed improvement in small wrinkles and erythema with IPL plus BTX compared with the baseline demonstrated by computerized image analysis. In conclusion, A combined therapy of mesobotx and IPL is an effective and safe treatment for fine wrinkles, telangiectasia, flushing.

Effect of intense pulsed light autopulse combined with oral metronidazole on serum inflammatory mediators in patients with mild and moderate acne

Objective:To study the effect of intense pulsed light autopulse combined with oral metronidazole on serum inflammatory mediators in patients with mild and moderate acne. Methods: A total of 84 patients who were diagnosed with mild-to-moderate acne in our hospital between May 2013 and December 2015 were selected and randomly divided into laser group and metronidazole group who received intense pulsed light autopulse combined with oral metronidazole therapy and oral metronidazole monotherapy respectively. Before treatment as well as 1 week and 2 weeks after treatment, the serum was collected, fluorescent quantitative PCR kits were used to determine the expression of TLR molecules and NLRP inflammasome, and enzyme-linked immunosorbent assay kits were used to determine the levels of inflammatory cytokines.Results: 2 weeks and 4 weeks after treatment, serum IL-1β, IL-8, IL-12 and IL-18 levels as well as TLR2, TLR4, NLRP3, ASC and Caspase-1 mRNA expression of both groups of patients were significantly lower than those before treatment, and serum IL-1β, IL-8, IL-12 and IL-18 levels as well as TLR2, TLR4, NLRP3, ASC and Caspase-1 mRNA expression of laser group were significantly lower than those of metronidazole group.Conclusion: Intense pulsed light autopulse combined with oral metronidazole has significant inhibitory effect on the inflammatory response mediated by pattern recognition receptors TLR2, TLR4 and NLRP3 in patients with mild and moderate acne.

Intense pulsed light‑based treatment for the improvement of symptoms in glaucoma patients treated with hypotensive eye drops

Background:Ocular surface disease in glaucoma patients is a significant ocular co-morbidity that can affect 40%to 59%of these patients worldwide.The current study was aimed at evaluating the potential clinical benefit of an intense pulsed light(IPL)-based treatment in glaucomatous patients with ocular surface disease due to prolonged hypotensive eyedrop treatments.To our knowledge,this is the first series analyzing the therapeutic effect of this treatment option in this type of patients.Methods:This non-comparative prospective case series study enrolled a total of 30 glaucoma patients ranging in age from 57 to 94 years old and treated with hypotensive eyedrops for years with dry eye symptomatology.All patients received four sessions of IPL treatment using the Optima IPL system(Lumenis,Yokneam,Israel)adjusted to the official optimized Lumenis setting.Changes in symptomatology,corneal staining,conjunctival hyperemia,non-invasive break-up time(NIBUT),tear osmolarity,tear meniscus height(TMH),meiboscore and meibomian gland expressibility was analyzed after treatment.Results:Statistically significant reductions were observed after IPL treatment in the symptomatology scores measured with different questionnaires[ocular surface disease index(OSDI),standard patient evaluation of eye dryness(SPEED)and symptom assessment questionnaire in dry eye(SANDE)]as well as with the visual analogue scale(P<0.001).Mean change in OSDI was−15.0±11.3.A significant reduction was found after treatment in the corneal staining score(P<0.001).A significant reduction was found in tear film meniscus height(P=0.012),as well as in tear film osmolarity(P=0.001).A significant reduction was also found in meibomian gland expressibility(P=0.003),changing the percentage of grade 3 eyes from 44.4%before IPL to 17.2%after treatment.Conclusions:IPL therapy combined with meibomian gland expression(MGX)seems to be an effective option to improve symptomatology in glaucomatous patients with ocular surface disease due to prolonged hypotensive eyedrop treatments,with an additional improvement in clinical signs,such as tear osmolarity and corneal staining.

Fifty Cases of Chloasma Treated by Acupuncture plus Intensive Pulse Light Irradiation

Objective: To observe the clinical therapeutic effect of acupuncture plus intensive pulse light irradiation on chloasma. Methods: Ninety-six cases of chloasma were randomly divided into two groups, the control group of 46 cases treated by simple acupuncture and the treatment group of 50 cases treated by acupuncture and intensive pulse light irradiation. Results: The total effective rate was 89.1% and 98.0% in the control group and treatment group respectively, with a significant difference between the two groups (P<0.05). Conclusion: For chloasma, the effect of treatment with acupuncture plus intensive pulse light irradiation is superior to that with simple acupuncture.

Instant formation of nanopores on flexible polymer membranes using intense pulsed light and nanoparticle templates

The development of simple and high-throughput approaches to yield solid-state nanopores on large surface membranes may facilitate the prevalence of nanopore analysis technology and in-vitro diagnosis using portable devices.However,solidstate nanopores are typically realized by complex and highend nanofabrication equipments.Here,we present a method to achieve nanopores on polymer membranes using,silver nanoparticles(AgNPs)as templates and intense pulsed light(IPL)as a heating source.The density and size of nanopores are controllable by adjusting the spin coating rate,the concentration of nanoparticle suspension,and the size of nanoparticles(NPs).The temperature of the AgNPs can rapidly reach 1132 K under instant heating of photothermal effect through light irradiation in 2 ms,resulting in localized melting and decomposition of an underneath polycarbonate(PC)membrane to yield nanopores with sizes ranging from 10 to 270 nm.After removing the nanoparticle residues,the flexible membrane with nanopores can be integrated into a flow cell to achieve a nanopore sensor that has been used to measure the translocation behaviors of bovine serum albumin(BSA).The results have demonstrated the capability of the sensor in protein denaturation identification.This low-cost and highthroughput technique to fabricate solid-state nanopores on flexible polymeric membranes may facilitate the development of more nanopore-based flexible sensors that can be integrated with other flexible components for wearable diagnosis.

强脉冲光不同脉宽治疗面部激素依赖性皮炎后红斑毛细血管扩张疗效分析

目的探讨采用强脉冲光的不同脉宽治疗面部激素依赖性皮炎后红斑毛细血管扩张患者的临床疗效及安全性。方法收集我院皮肤性病科2016年1月至2021年6月收治的面部激素依赖性皮炎后红斑毛细血管扩张患者资料57例,根据治疗方案进行分组,采用较长脉宽治疗的患者为A组(29例),较短脉宽治疗的患者为B组(28例)。采用临床红斑评定量表(CEA)评价红斑改善情况,毛细血管扩张7点评分标准(TGS)评价毛细血管扩张改善情况,统计分析两组患者治疗疗效及不良反应发生情况。结果组间比较,两组CEA评分治疗后均降低,但A组CEA评分降低更明显,差异有统计学意义(P<0.05);两组TGS评分均增加,但两组间差异无统计学意义(P>0.05)。治疗前后比较,随着治疗次数增加,两组治疗后与治疗前相比,CEA评分均明显降低,差异有统计学意义(P<0.05);TGS评分均明显增加,差异有统计学意义(P<0.05)。结论治疗面部激素依赖性皮炎后红斑毛细血管扩张患者,两种脉宽红斑和毛细血管扩张均得到较好改善;长脉宽较短脉宽红斑改善效果更好,安全性更高,增加治疗次数可提高疗效。

Advances in the treatment of traumatic scars with laser,intense pulsed light,radiofrequency,and ultrasound

Traumatic scarring is one of the most common complications after soft tissue injury caused by burns and trauma,which affects tens of millions of people worldwide every year.Traumatic scars diminish the quality of life due to disfigurement,symptoms of pain and itch,and restricted motion.The pathogenesis and pathophysiology of traumatic scar remain elusive.The management for traumatic scars is comprised of surgical and non-surgical interventions such as pressure therapy,silicone,corticosteroid,and radiotherapy,which are chosen by clinicians based on the physical examinations of scars.Recently,great progress in treating traumatic scars has been achieved by the development of novel technologies including laser,intense pulsed light(IPL),radiofrequency,and ultrasound.The aim of this review article was to summarize the advances of these technologies for traumatic scars intervention.

归白祛斑汤结合强脉冲光治疗黄褐斑(肝郁气滞型)临床疗效观察

目的观察黄褐斑(肝郁气滞型)患者采取归白祛斑汤结合强脉冲光治疗的临床效果。方法将纳入的78例肝郁气滞型黄褐斑患者以随机数字表法分为观察组和对照组,每组39例,对照组口服维生素C与维生素E治疗,并给予强脉冲光治疗,而观察组在对照组治疗基础上结合归白祛斑汤治疗。数据观察:临床治疗效果、治疗前后中医证候积分(面部黄褐色斑片、胁胀胸痞、性情急躁易怒、乳房作胀或疼痛)变化、皮损面积与皮损颜色评分变化、皮肤病生活质量指数(dermatology life quality index,DLQI评分)变化、皮肤角质层含水量变化、焦虑自评量表(Self-Rating Anxiety Scale,SAS)评分变化、治疗不良反应。结果对照组与观察组患者治疗总有效率比较[82.05%(32/39)vs97.44%(38/39)],观察组更高,P<0.05;治疗前,两组患者中医证候积分(面部黄褐色斑片、胁胀胸痞、性情急躁易怒及乳房作胀或疼痛)、皮损面积及颜色评分、皮肤角质层含水量与DLQI评分、SAS评分等指标比较,P>0.05,治疗后两组患者中医证候积分(面部黄褐色斑片、胁胀胸痞、性情急躁易怒、乳房作胀或疼痛)、皮损面积与皮损颜色评分、DLQI评分、皮肤角质层含水量、SAS评分均改善,治疗后观察组患者的中医证候积分(面部黄褐色斑片、胁胀胸痞、性情急躁易怒、乳房作胀或疼痛)、皮损面积与皮损颜色评分、DLQI评分、皮肤角质层含水量、SAS评分等指标均优于对照组患者,P<0.05;对照组与观察组患者不良反应均较少,P>0.05。结论归白祛斑汤结合强脉冲光治疗黄褐斑(肝郁气滞型)临床疗效显著,患者症状改善,心理状态改善,生活质量明显提升,且不良反应少,治疗较为安全可靠,值得应用。

强脉冲光配合异维A酸红霉素凝胶治疗寻常型痤疮对患者皮损症状、色素沉着情况的影响

目的探讨强脉冲光配合异维A酸红霉素凝胶治疗寻常型痤疮对患者皮损症状、色素沉着情况的影响。方法回顾性分析2022年5月至2023年3月聊城市人民医院皮肤科收治的116例寻常型痤疮患者,按照治疗方式的不同分为对照组和研究组,各58例。对照组采用异维A酸红霉素凝胶治疗,研究组在此基础上联合强脉冲光治疗。对比两组临床疗效、色素沉着情况、红斑程度、痤疮病情、皮肤屏障功能、不良反应。结果观察组治疗总有效率(96.43%),高于对照组治疗总有效率(71.43%),差异有统计学意义(P<0.05)。治疗后,观察组色素沉着情况、红斑程度分值比对照组明显降低,差异有统计学意义(P<0.05);两组卡迪夫痤疮伤残指数(CADI)评分以及痤疮综合分级系统(GAGS)评分显著降低,且观察组分值比对照组降低明显,差异有统计学意义(P<0.05);两组经皮水分丢失量(TEWL)、油脂含量值显著降低,且观察组比对照组显著降低,两组皮肤含水量显著提升,且观察组比对照组提升明显,差异有统计学意义(P<0.05);两组面部皮肤干燥、面部皮肤潮红、面部局部脱皮、面部红斑烧灼感比较,差异无统计学意义(P>0.05)。结论采用强脉冲光联合异维A酸红霉素凝胶治疗寻常型痤疮,可有效缓解痤疮病情,增强其疗效,减少色素沉着以及红斑情况,提升皮肤屏障功能,且安全性较好。

强脉冲光联合重组人源Ⅲ型胶原蛋白贴敷料对玫瑰痤疮患者的影响

目的评估强脉冲光结合重组人源Ⅲ型胶原蛋白贴敷料在玫瑰痤疮治疗中的临床效果。方法前瞻性研究,选取2020年4月至2023年4月在延安市人民医院皮肤科治疗的122例玫瑰痤疮患者作为研究对象,依据随机数字表法将患者分为强脉冲光组和治疗组,各61例。强脉冲光组男31例、女30例,年龄(31.63±5.57)岁,病程(3.49±1.31)年,接受强脉冲光治疗;治疗组男34例、女27例,年龄(30.18±5.14)岁,病程(3.36±1.27)年,在强脉冲光组基础上采用重组人源Ⅲ型胶原蛋白贴敷料治疗。对比两组患者临床疗效、玫瑰痤疮研究者整体评估(IGA)评分、VISIA红区情况、皮肤生理D0I:10.3765.2024.15.014指标、医生整体评价法(PGA)、痤疮特异性生活质量调查表(Acne-QOL)及治疗相关不良事件。统计学方法采用t检验、χ^(2)检验。结果治疗组治疗后4周的总有效率为91.80%(56/61),高于强脉冲光组的73.77%(45/61),差异有统计学意义(χ^(2)=6.960,P=0.008)。治疗前,两组患者IGA评分、面部VISIA红区检测情况、经皮水分散失值(TEWL)、皮肤油脂、角质层含水量、皮肤损伤程度及生活质量评分比较,差异均无统计学意义(均P>0.05)。治疗后4周,治疗组IGA评分、TEWL、皮肤油脂均低于强脉冲光组[(2.27±0.83)分比(3.83±0.86)分、(12.29±2.91)%比(16.45±2.17)%、(70.31±11.92)μg/cm2比(83.64±13.83)μg/cm2],面部VISIA红区检测情况、角质层含水量、皮肤损伤程度、自我感知、情感功能、痤疮症状、社会功能评分均高于强脉冲光组[(56.82±12.56)分比(42.31±10.97)分、(67.91±11.24)%比(56.26±10.39)%、(2.82±0.87)分比(2.25±0.81)分、(22.52±2.71)分比(18.73±2.52)分、(16.83±2.74)分比(14.32±2.18)分、(20.52±2.46)分比(17.93±2.38)分、(19.74±2.85)分比(15.83±2.14)分],差异均有统计学意义(t=10.194、8.951、5.702、6.796、5.944、3.745、7.999、5.599、5.910、8.568,均P<0.05)。治疗组不良事件发生率为6.56%(4/61),与强脉冲光组[11.48%(7/61)]比较,差异无统计学意义(χ^(2)=0.899,P=0.343)。结论强脉冲光联合重组人源Ⅲ型胶原蛋白贴敷料在治疗玫瑰痤疮应用中显示出良好的临床效果,可有效改善皮肤整体状况和生活质量,同时表现出较高的安全性,适宜在临床上推广应用。

Novel Intense-pulsed-light synthesis of amorphous SnO_(2)electron-selective layers for efficient planar MAPbI_(3)perovskite solar cells

Although perovskite solar cells(PSCs)have achieved a high power conversion efficiency(PCE)within a short period of development,the high-temperature sintering of the constituent electron-selective layers(ESLs)impedes the commercialization.In this report,we demonstrate the effectiveness of an intensepulsed-light(IPL)treatment for the rapid and damage-free sintering of amorphous-SnO_(2)ESLs for use in PSCs.The IPL treatment of amorphous-SnO_(2)substantially reduced the amount of surface hydroxyl groups,modified the surface energy,and enabled the growth of a low-stress perovskite layer with large grain sizes,all of which enhanced the photovoltaic properties and led to the proper alignment of band structures for efficient PSCs.Through comprehensive optimization of the IPL conditions,a PCE of 17.68%was achieved from the MAPb I3 planar PSC based on an amorphous-SnO_(2)IPL treated for a few tens of seconds,which was significantly increased compared with a PCE(7.06%)of nontreated SnO_(2)based counterpart.In addition,the PCE of the IPL-treated SnO_(2)based PSC is comparable to the best PCE(18.16%)of PSCs fabricated with SnO_(2)ESL annealed for three hours at 185℃.Because of its ultrafast sintering time and tendency to not damage SnO_(2)ESLs,the new IPL process is expected to open new opportunities for the commercialization of PSCs.

脉冲强光技术对食品加工品质的影响及安全控制技术研究进展

脉冲强光是一类新兴的非热处理技术,该装置以稀有气体被电离后释放高能量的脉冲光来降低固体表面或液态食品中的微生物负载量,从而延长食品的货架寿命,且对多种营养成分造成不明显的破坏,还可以改良部分食品的理化性质和感官品质,这弥补了传统热力杀菌方法与化学杀菌方法的缺陷。脉冲强光中的光化学效应、光热效应被认为是降低食品中微生物负载量的主要机制。综合多方面的研究,脉冲强光技术在食品加工和安全控制中均取得了较好的处理效果。该研究主要综述了脉冲强光技术在食品加工和安全控制方面的应用进展,评价了不同脉冲强光处理对食品品质中部分理化指标的变化情况,最后展望了脉冲强光技术的前景与该技术的部分不足之处,为脉冲强光技术在食品工业领域广泛应用提供参考。

Vasculight强脉冲光联合Nlite脉冲染料激光治疗鲜红斑痣175例临床观察

目的探讨和评价强脉冲光(IPL)联合脉冲染料激光(PDL)治疗紫红型和增厚型鲜红斑痣(PWS)的疗效。方法自2002年10月至2007年6月,采用IPL联合PDL对175例紫红型和增厚型PWS患者进行治疗。先用IPL治疗2～5次,再用PDL治疗;每次治疗间隔2～3个月,共治疗4～8次。并进行回顾性分析,总结治疗方案、治疗次数、皮损性质等与疗效的关系,及不良反应的发生情况。结果治疗后随访175例患者3～6个月,治愈率和有效率分别为51.43%和14.29%;在4～8次的治疗中,随治疗次数的增多其治疗效果也越好,治疗次数间的疗效比较,其差异有统计学意义(P<0.05)。其中出现增生性瘢痕者2例(占1.14%),色素减退者3例(占1.71%),色素沉着者5例(占2.86%)。结论IPL联合PDL治疗紫红型和增厚型PWS疗效可靠,不良反应较少,是目前治疗紫红型和增厚型PWS的主要治疗方法。

水光注射配合强脉冲光治疗女性迟发型痤疮的效果及对血清炎症因子的影响

目的:研究水光注射配合强脉冲光治疗女性迟发型痤疮的效果及对血清炎症因子的影响。方法:选取定州市人民医院2022年1月—2023年1月收治的110例女性迟发型痤疮患者进行研究。将其以系统随机化法分作配合组(n=55)及参考组(n=55)。参考组选用强脉冲光治疗,配合组则于参考组的基础上增用水光注射治疗。对比两组临床疗效,皮损症状,皮肤屏障功能,血清炎症因子水平。结果:配合组总有效率高于参考组(94.55%vs.81.82%)(P<0.05)。治疗后两组各项皮损症状评分均低于治疗前,且配合组均低于参考组(P<0.05)。治疗后配合组表皮含水量高于参考组,而红斑数量、经皮水分流失量(TEWL)均低于参考组(P<0.05)。治疗后两组各项血清炎症因子水平均低于治疗前,且配合组均低于参考组(P<0.05)。结论:水光注射配合强脉冲光治疗女性迟发型痤疮的效果较佳,可明显改善皮肤屏障功能与血清炎症因子水平。