Effects of Lactobacillus plantarum CJLP55 on Clinical Improvement,Skin Condition and Urine Bacterial Extracellular Vesicles in Patients with Acne Vulgaris: A Randomized,Double-Blind,Placebo-Controlled Study

Lactobacillus plantarum CJLP55 has anti-pathogenic bacterial and anti-inflammatory activities in vitro. We investigated the dietary effect of CJLP55 supplement in patients with acne vulgaris, a prevalent inflammatory skin condition. Subjects ingested CJLP55 or placebo (n = 14 per group) supplements for 12 weeks in this double-blind, placebo-controlled randomized study. Acne lesion count and grade, skin sebum, hydration, pH and surface lipids were assessed. Metagenomic DNA analysis was performed on urine extracellular vesicles (EV), which indirectly reflect systemic bacterial flora. Compared to the placebo supplement, CJLP55 supplement improved acne lesion count and grade, decreased sebum triglycerides (TG), and increased hydration and ceramide 2, the major ceramide species that maintains the epidermal lipid barrier for hydration. In addition, CJLP55 supplement decreased the prevalence of Proteobacteria and increased Firmicutes, which were correlated with decreased TG, the major skin surface lipid of sebum origin. CJLP55 supplement further decreased the Bacteroidetes:Firmicutes ratio, a relevant marker of bacterial dysbiosis. No differences in skin pH, other skin surface lipids or urine bacterial EV phylum were noted between CJLP55 and placebo supplements. Dietary Lactobacillus plantarum CJLP55 was beneficial to clinical state, skin sebum, and hydration and urine bacterial EV phylum flora in patients with acne vulgaris.     

Potential Role of Probiotics in Ameliorating Psoriasis by Modulating Gut Microbiota in Imiquimod-Induced Psoriasis-Like Mice

Psoriasis is an immune-mediated systemic disease that may be treated with probiotics. In this study, probiotic strains that could or could not decrease interleukin (IL)-17 levels were applied to imiquimod (IMQ)-induced psoriasis-like mice via oral administration. Bifidobacterium adolescentis CCFM667, B. breve CCFM1078, Lacticaseibacillus paracasei CCFM1074, and Limosilactobacillus reuteri CCFM1132 ameliorated psoriasis-like pathological characteristics and suppressed the release of IL-23/T helper cell 17 (Th17) axis-related inflammatory cytokines, whereas B. animalis CCFM1148, L. paracasei CCFM1147, and L. reuteri CCFM1040 neither alleviated the pathological characteristics nor reduced the levels of inflammatory cytokines. All effective strains increased the contents of short-chain fatty acids, which were negatively correlated with the levels of inflammatory cytokines. By performing 16S rRNA gene sequencing, the diversity of gut microbiota in psoriasis-like mice was found to decrease, but all effective strains made some specific changes to the composition of gut microbiota compared to the ineffective strains. Furthermore, except for B. breve CCFM1078, all other effective strains decreased the abundance of the family Rikenellaceae, which was positively correlated with psoriasis-like pathological characteristics and was negatively correlated with propionate levels. These findings demonstrated effects of strain-specificity, and how probiotics ameliorated psoriasis and provide new possibilities for the treatment of psoriasis.     

86例痤疮患者血清性激素水平分析

目的 研究痤疮患者血清性激素水平与痤疮的关系。方法 对86例痤疮患者以放免法检测患者血清睾酮、卵泡刺激素（男性称精子生成素）、黄体生成素（男性称间质细胞刺激素）、孕酮和雌二醇;并对其中20例患者检测了泌乳素。结果 男性寻常痤疮、男和女聚合性痤疮和痤疮伴四肢或乳晕多毛（女性）63．89％患者血清睾酮增高,75％患者雌二醇增高;男性疮疮90．91％患者精子生成素低于正常。结论 血清性激素水平与痤疮类型有关,在痤疮的发生、发展和持续状态中起重要作用。     

上海市耐药和非耐药肺结核患者服药依从性分析

摘 要：目的：探讨银屑病复发的影响因素。方法：选取2018年11月—2020年5月在长春中医药大学附属第三临床医 院进行治疗的银屑病患者 347例,统计患者在随访期间银屑病的复发情况,探讨影响银屑病治疗后复发的危险因素。结果： 本次研究纳入病例 347 例,完成 1 年随访的患者有 338 例,而在随访期间有 153 例银屑病患者出现复发情况,复发率高达 45.27%。经单因素分析,银屑病复发与银屑病家族史、饮酒史、精神状态异常、感染、环境潮湿、不规范用药等有关。经多 因素logistic回归分析显示,银屑病家族史、饮酒史、精神状态异常、感染、环境潮湿、不规范用药为银屑病复发的独立危险 因素。结论：银屑病患者在治疗后有较高的复发率,患者的复发主要受到银屑病家族史、饮酒史、精神状态异常、感染、环 境潮湿、不规范用药等危险因素的影响。     

IL-20在寻常型银屑病患者皮损和PBMC中表达的研究

为了观察IL 2 0在寻常型银屑病患者皮损和外周血单个核细胞 (PBMC )中的表达情况 ,用免疫组化、免疫荧光和RT PCR方法检测IL 2 0在寻常型银屑病患者皮损处和正常人相应部位皮肤及PBMC中的表达。结果发现 ,用上述方法在正常人和银屑病患者皮肤中均不能检测到IL 2 0的表达。RT PCR检测发现 ,IL 2 0在寻常型银屑病患者PBMC中的阳性率为 2 5 % ,在正常人PBMC中的阳性率为 87 5 %。由此得出结论 ,虽然皮肤是IL 2 0作用的靶器官 ,但其本身并不表达IL 2 0。PBMC表达IL 2 0 ,但寻常型银屑病患者PBMC中IL 2 0的表达显著低于正常人 (P <0 0 1)。     

豚鼠银屑病样动物模型中角蛋白K14,16,17表达水平的变化

目的　研究心得安外涂所致豚鼠银屑病样动物模型皮损中角蛋白 K1 4,1 6 ,1 7表达水平的变化 ,从分子水平研究此种动物模型的可行性 .方法　用 5 0 g· L- 1心得安乳剂外涂豚鼠耳背部皮肤诱导银屑病样动物模型 ,应用原位杂交法检测银屑病样皮损中角蛋白 K1 4,1 6 ,1 7的表达 .结果　心得安外涂所致豚鼠银屑病样动物模型皮损中角蛋白 K1 4,1 6表达水平较正常对照组明显增高 ,K1 7的水平无明显变化 .结论　心得安外涂所致豚鼠银屑病样动物模型不仅在组织病理学而且在分子水平上与人类银屑病皮损基本一致     

抗角蛋白自身抗体对银屑病裸鼠皮损移植模型的影响

目的：建立银屑病裸鼠皮损移植模型,观察抗角蛋白自身抗体（AK auto Ab)对银屑病动物模型的影响。方法：将人体银屑病皮损组织块移植于裸鼠背部,移植后一组裸鼠腹腔注射纯化的人体AK auto Ab,另一组裸鼠腹腔注射生理盐水作为对照,从组织病理变化评价银屑病裸鼠皮损移植模型的可行性以及AK auto Ab对移植的银屑病皮片组织学改变的影响。结果：对照组皮损植片相当一段时间内能稳定地维持银屑病的部分重要组织学改变,而AK auto Ab注射组则可使银屑病的组织学特征的维持时间明显缩短。结论：银屑病裸鼠皮损移植模型是银屑病短期内理想的动物模型,AK auto Ab具有促进银屑皮炎恢复的作用。     

银屑病患者血清及尿中表皮生长因子的检测及意义

目的：评价表皮生长因子（EGF）在银屑病发病中的意义。方法：应用放射免疫法分别检测血清及尿液中EGF含量。结果：银屑病患者血清及尿液中EGF均显著升高。结论：EGF在银屑病初次发病及复发中起着重要的作用。     

进行期银屑病患者活性氧代谢变化探讨

目的：探讨进行期银屑病患者活性氧代谢变化。方法：采用细胞化学发光分析技术测定患者及健康对照组外周血淋巴细胞化学发光强度（ Ｌｙｃｌ）及多形核白细胞化学发光强度（ Ｐ Ｍ Ｎｃｌ）,同时测定血浆超氧化物歧化酶（ Ｓ Ｏ Ｄ）、全血谷胱甘肽过氧化物酶（ Ｇ Ｓ Ｈ Ｐｘ）以及血浆丙二醛（ Ｍ Ｄ Ａ）含量。结果：银屑病患者 Ｌｙｃｌ及 Ｐ Ｍ Ｎｃｌ较对照组显著增强（ Ｐ＜ ０．０５）,血浆 Ｓ Ｏ Ｄ活力明显增强（ Ｐ＜ ０．０５）, Ｍ Ｄ Ａ 浓度较对照组明显增高（ Ｐ＜ ００５）。全血 Ｇ Ｓ Ｈ Ｐｘ 活力较对照组显著下降（ Ｐ＜ ０．０５）。结论：进行期银屑病患者细胞功能改变,机体活性氧代谢增强,抗氧化功能下降,组织细胞损伤加快。活性氧损伤可能是该病患者皮损炎症的重要原因。