Injectable antimicrobial hydrogels with antimicrobial peptide and sanguinarine controlled release ability for preventing bacterial infections.

The emergence of antibiotic resistant bacteria represents a significant and common clinical problem worldwide as infections are becoming increasingly common. It is urgent to broaden the sources of biomaterials that can prevent both bacterial infection and antibiotic resistance. In this work, oxidized sodium alginate/aminated hyaluronic acid (OSA/AHA) hydrogel with various proportions was developed based on Schiff base reaction.

Secukinumab monotherapy successfully treated severe refractory type V (atypical juvenile) pityriasis rubra pilaris: A case report and literature review.

Pityriasis rubra pilaris (PRP) is a rare heterogeneous group of papulosquamous inflammatory disorders with unknown etiology. PRP is often resistant to many conventional therapies which has made more challenging on treatment. More recently, several studies have shown encouraging clinical results of secukinumab in the treatment of PRP in adult, but no studies have explored its effects in children.

Identification and functional characterization of a novel transglutaminase 1 gene mutation associated with autosomal recessive congenital ichthyosis.

Background: Autosomal recessive congenital ichthyosis (ARCI) is a group of genetically heterogeneous diseases. Mutations in transglutaminase (TGase) 1 gene (TGM1, OMIM 190195) have been implicated in ARCI. However, little is known about TGM1 mutations in the Chinese population, and no functional studies have investigated the biological effect of mutant TGM1 on human epidermal keratinocytes (HaCaT) cells.

Netherton syndrome in one Chinese adult with a novel mutation in the SPINK5 gene and immunohistochemical studies of LEKTI.

Background: Netherton syndrome (NS) is a severe autosomal recessive ichthyosis. It is characterized by congenital ichthyosiform erythroderma, trichorrhexis invaginata, ichthyosis linearis circumflexa, atopic diathesis, and frequent bacterial infections. The disease is caused by mutations in the SPINK5 (serine protease inhibitor Kazal-type 5) gene, a new type of serine protease inhibitor involved in the regulation of skin barrier formation and immunity.

[Expression, clinical and pathological significance of KIAA1173 gene in skin squamous cell carcinoma].

Objective: To clone, prepare probe for and explore the expression levels of KIAA1173 gene in skin squamous cell carcinoma (SSCC) and investigate its expression, clinical and pathological significance.

Methods: KIAA1173 gene fragment (354 bp) was cloned and its cDNA probe prepared. The expression of KIAA1173 gene in 133 SSCC tissue samples (including 52 specimens of I, 37 specimens of II, 31 specimens of III and 13 specimens of IV) and 47 normal controls were examined by in situ hybridization (ISH).

Proteus syndrome: a case report and a case study review in China.

Proteus syndrome (PS) is a rare and sporadic disorder characterized by overgrowth of multiple tissues and a propensity to develop particular neoplasms. The clinical manifestations of PS include macrodactyly, vertebral abnormalities, asymmetric limb overgrowth and length discrepancy, hyperostosis, abnormal and asymmetric fat distribution, asymmetric muscle development, connective tissue nevi, and vascular malformations. We report a 16-year old female patient who manifested a number of these complications and review the Chinese literature about the diagnosis, natural history, and management of PS.

A new method to make nuclei or cell microarrays.

We invented a new method to make microarrays using nuclei extracted from paraffin-embedded tissues or cultured cells. A blank recipient paraffin block with 10 x 10 cores was constructed and sectioned to make the mold for the cell arrays. The sections of paraffin were mounted on poly-L-lysine-coated slides.

[Detection of KIAA1173 gene expression in nasopharyngeal carcinoma tissues and cell lines on tissue microarray].

Background & Objective: Although the molecular etiology of nasopharyngeal carcinoma (NPC) is still unknown, studies showed that there are NPC-associated tumor suppressor genes residing in chromosome 3p21-22. KIAA1173 gene, locates at 3p22.1, was characterized as a new carcinoma-related gene, while its correlation to tumorigenesis of NPC hasn't been reported yet.

[Detection of bcl-2/IgH gene rearrangement in diffuse large B cell lymphoma by hemi-nested PCR].

Objectives: To explore a sensitive and specific method for detection of bcl-2/IgH gene rearrangement in diffuse large B cell lymphoma (DLBCL), and verify the credibility of the established method.

Methods: bcl-2/IgH hemi-nested PCR primers were designed using the professional primer design software. Fifty-two samples of pathologically diagnosed DLBCL and 10 fresh tonsil tissues were amplified using hemi-nested touch down-PCR to detect bcl-2/IgH gene rearrangement.

[Cloning of human KIAA1173 gene and biological characterization of transfected 6-10B cells].

Objective: To establish a 6-10B cell line with stable expression of KIAA1173 gene and study the biological behaviors of the cells.

Methods: The total RNA was extracted from normal skeletal muscular tissues for cloning of KIAA1173 gene by means of RT-PCR which was subsequently introduced into pcDNA3.1 (+) vector.

[Preparation and characterization of podophyllotoxin-dipalmitoylphosphatidylcholine proliposome].

Objective: To prepare podophyllotoxin-dipalmitoylphosphatidylcholine (PPT-DPPC) proliposomes (PPT-DPPC-PL) for improvement of the stability of PPT-DPPC liposome.

Methods: Freeze-drying method was used to prepare PPT-DPPC-PL, and the particle morphology, size range, encapsulation efficiency and stability of PPT-DPPC liposome were investigated.

Results: After hydration of PPT-DPPC-PL, PPT-DPPC liposome appeared multivesicular under electron microscope and the particles were distributed homogeneously with an average particle size of 1.

Experimental study of podophyllotoxin dipalmitoylphosphatidylcholine liposome for topical skin application.

Objective: To observe the drug release of podophyllotoxin liposome and the drug retention in the skin.

Methods: Two liposome suspensions containing respectively podophyllotoxin dipalmitoylphosphatidylcholine (DPPC) and soya bean lecithin were prepared ultrasonically. Podophyllotoxin anhydride and the liposome suspensions were applied onto the skin of young pigs to observe the drug retention in the skin at different time points in the following 2 days, with exclusive liposome or anhydride serving as control.

[Changes in serum concentration of podophyllotoxin after its topical application with liposome on rat skin].

Objective: To investigate the changes of serum concentration of podophyllotoxin after topical application of liposome podophyllotoxin suspension on rat skin.

Methods: SD rats were used in this study, which were divided into test group (n=48) to receive application of liposome podophyllotoxin (0.5 % ) suspension and control group (n=48) treated with 0.