scholarly journals Potential of Topical Microemulsion Serum Formulations to Enhance In Vitro and Clinical Anti-Skin Wrinkle Benefits of Cordyceps Militaris Extracts

2021 ◽  
Author(s):  
Pachabadee Marsup ◽  
Sasithorn Sirilun ◽  
Adchara Prommaban ◽  
Suwannee Sri ◽  
Waranya Neimkhum ◽  
...  
Keyword(s):  
Skin Irritation ◽  
Water Extract ◽  
Skin Elasticity ◽  
Elastase Inhibitor ◽  
Matrix Metalloproteinase 1 ◽  
Potent Inhibition ◽  
Human Volunteers ◽  
Skin Moisture

Abstract This research is the first to investigate the anti-skin wrinkle properties of Cordyceps mili-taris extracts both in vitro and in vivo. Anti-skin wrinkle activities of C. militaris were investigated by means of matrix metalloproteinase-1 (MMP-1), elastase, and hyaluronidase inhibitions. Microemulsions and topical serum formulation containing C. militaris extract were developed. The anti-skin wrinkle efficacy and irritation properties of the topical serum formulations were clinically investigated in human volunteers. Cordycepin was identified as a major component of C. miliaris extract that was responsible for MMP-1, elastase, and hyaluronidase inhibition. The C. miliaris water extract possessed the most potent inhibition on MMP-1 (77.9 ± 5.3%) and elastase (84.4 ± 4.0%). Interestingly, CW was as a potent MMP-1 and elastase inhibitor as oleanolic acid and EGCG. CW was incorporated into the microemulsion with the smallest internal droplet size (146.1 ± 1.5 nm) and further developed as a topical serum formulation. The resulting serum formulation effectively enhanced skin moisture (42.2 ± 14.2%), increased the skin elasticity (39.9 ± 7.3%), and induced no skin irritation in 30 human volunteers. The effectiveness on the skin was detected after 1 week of the applications. Therefore, it was suggested as an effective anti-skin wrinkle formulation.

Inhibitory effects of epimedium herb water extract on the inflammatory response in vitro and in vivo

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
YC Oh ◽  
YH Jeong ◽  
WK Cho ◽  
SJ Lee ◽  
JY Ma
Keyword(s):  
Inflammatory Response ◽  
Water Extract ◽  
Inhibitory Effects

scholarly journals FORMULATION AND IN VITRO, IN VIVO EVALUATION OF PRONIOSOMAL GEL OF NEOMYCIN SULPHATE

2019 ◽  
pp. 156-163
Author(s):  
AMOL SHETE ◽  
PRIYANKA THORAT ◽  
RAJENDRA DOIJAD ◽  
SACHIN SAJANE
Keyword(s):  
Phase Separation ◽  
Skin Irritation ◽  
Entrapment Efficiency ◽  
Separation Method ◽  
Gelling Agent ◽  
In Vivo Evaluation ◽  
Skin Delivery ◽  
Span 60

Objective: The objectives of present investigation were to prepare and evaluate proniosomes of neomycin sulphate (NS) by coacervation phase separation method by using sorbitan monostearate (span 60) and lecithin as a surfactant to increase the penetration through the skin and study the effect of concentration of the same. Methods: Proniosomes of neomycin sulphate (NS) were prepared by coacervation phase separation method by using span 60 and lecithin. The effect of concentration of span 60 and lecithin was studied by factorial design. The prepared proniosomes were converted to gel by using carbopol as a gelling agent. The prepared formulations were evaluated for entrapment efficiency, in vitro drug diffusion, in vitro antibacterial activity and in vivo skin irritation test etc. Results: All Formulation showed the percentage entrapment efficiency in the range 38.31±0.05% to 77.96±0.06%, good homogeneity and gel was easily spreadable with minimal of shear. Optimized formulation showed enhanced rate of diffusion in vitro, increase in zone of inhibition against staphylococcus aureus, no skin irritation and showed good stability. Conclusion: The results of present study indicates that proniosomal gel formulated by using combination of span 60, Lecithin, cholesterol can be used to enhance skin delivery of NS because of excellent permeation of drug. Developed proniosomal gel formulation was promising carrier for NS

scholarly journals Characterization of LDD-2633 as a Novel RET Kinase Inhibitor with Anti-Tumor Effects in Thyroid Cancer

2021 ◽  
Vol 14 (1) ◽  
pp. 38
Author(s):  
Hyo Jeong Lee ◽  
Pyeonghwa Jeong ◽  
Yeongyu Moon ◽  
Jungil Choi ◽  
Jeong Doo Heo ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Thyroid Carcinoma ◽  
Kinase Inhibitor ◽  
Point Mutations ◽  
Carcinoma Cells ◽  
Medullary Thyroid ◽  
Potent Inhibition ◽  
Kinase Inhibitory Activity

Rearranged during transfection (RET), a receptor tyrosine kinase, is activated by glial cell line-derived neurotrophic factor family ligands. Chromosomal rearrangement or point mutations in RET are observed in patients with papillary thyroid and medullary thyroid carcinomas. Oncogenic alteration of RET results in constitutive activation of RET activity. Therefore, inhibiting RET activity has become a target in thyroid cancer therapy. Here, the anti-tumor activity of a novel RET inhibitor was characterized in medullary thyroid carcinoma cells. The indirubin derivative LDD-2633 was tested for RET kinase inhibitory activity. In vitro, LDD-2633 showed potent inhibition of RET kinase activity, with an IC50 of 4.42 nM. The growth of TT thyroid carcinoma cells harboring an RET mutation was suppressed by LDD-2633 treatment via the proliferation suppression and the induction of apoptosis. The effects of LDD-2633 on the RET signaling pathway were examined; LDD-2633 inhibited the phosphorylation of the RET protein and the downstream molecules Shc and ERK1/2. Oral administration of 20 or 40 mg/kg of LDD-2633 induced dose-dependent suppression of TT cell xenograft tumor growth. The in vivo and in vitro experimental results supported the potential use of LDD-2633 as an anticancer drug for thyroid cancers.

scholarly journals High-Throughput Identification of Organic Compounds from Polygoni Multiflori Radix Praeparata (Zhiheshouwu) by UHPLC-Q-Exactive Orbitrap-MS

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3977
Author(s):  
Shaoyun Wang ◽  
Xiaozhu Sun ◽  
Shuo An ◽  
Fang Sang ◽  
Yunli Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Chemical Constituents ◽  
Water Extract ◽  
Ethanol Extract ◽  
In Vivo Studies ◽  
Polygonum Multiflorum ◽  
Q Exactive ◽  
Orbitrap Ms

Polygoni Multiflori Radix Praeparata (PMRP), as the processed product of tuberous roots of Polygonum multiflorum Thunb., is one of the most famous traditional Chinese medicines, with a long history. However, in recent years, liver adverse reactions linked to PMRP have been frequently reported. Our work attempted to investigate the chemical constituents of PMRP for clinical research and safe medication. In this study, an effective and rapid method was established to separate and characterize the constituents in PMRP by combining ultra-high performance liquid chromatography with hybrid quadrupole-orbitrap mass spectrometry (UHPLC-Q-Exactive Orbitrap-MS). Based on the accurate mass measurements for molecular and characteristic fragment ions, a total of 103 compounds, including 24 anthraquinones, 21 stilbenes, 15 phenolic acids, 14 flavones, and 29 other compounds were identified or tentatively characterized. Forty-eight compounds were tentatively characterized from PMRP for the first time, and their fragmentation behaviors were summarized. There were 101 components in PMRP ethanol extract (PMRPE) and 91 components in PMRP water extract (PMRPW). Simultaneously, the peak areas of several potential xenobiotic components were compared in the detection, which showed that PMRPE has a higher content of anthraquinones and stilbenes. The obtained results can be used in pharmacological and toxicological research and provided useful information for further in vitro and in vivo studies.

scholarly journals Transcription of Candidate Virulence Genes ofHaemophilus ducreyi during Infection of Human Volunteers

2001 ◽  
Vol 69 (3) ◽  
pp. 1483-1487 ◽  
Author(s):  
Robert E. Throm ◽  
Stanley M. Spinola
Keyword(s):  
Experimental Infection ◽  
Virulence Genes ◽  
Human Model ◽  
Specific Gene ◽  
Gene Products ◽  
Virulence Determinants ◽  
Reverse Transcription Pcr ◽  
Human Volunteers

ABSTRACT Haemophilus ducreyi expresses several putative virulence factors in vitro. Isogenic mutant-to-parent comparisons have been performed in a human model of experimental infection to examine whether specific gene products are involved in pathogenesis. Several mutants (momp, ftpA, losB, lst, cdtC, and hhdB) were as virulent as the parent in the human model, suggesting that their gene products did not play a major role in pustule formation. However, we could not exclude the possibility that the gene of interest was not expressed during the initial stages of infection. Biopsies of pustules obtained from volunteers infected with H. ducreyiwere subjected to reverse transcription-PCR. Transcripts corresponding to momp, ftpA, losB, lst, cdtB, and hhdA were expressed in vivo. In addition, transcripts for other putative virulence determinants such as ompA2, tdhA, lspA1, andlspA2 were detected in the biopsies. These results indicate that although several candidate virulence determinants are expressed during experimental infection, they do not have a major role in the initial stages of pathogenesis.

Diagnostic and Experimental Methods Skin irritation: tests in vivo and in vitro

1990 ◽  
Vol 23 (4) ◽  
pp. 287-287
Author(s):  
D. P. Bruynzeel ◽  
B. A. M. Gerritsen ◽  
P. De Haan ◽  
E. M. De Boer
Keyword(s):  
Skin Irritation ◽  
Experimental Methods

scholarly journals Curcumin-removed turmeric oleoresin nano-emulsion as a novel botanical fungicide to control anthracnose (Colletotrichum gloeosporioides) in litchi

2021 ◽  
Vol 10 (1) ◽  
pp. 729-741
Author(s):  
Van Cuong Bui ◽  
The Tam Le ◽  
Tuyen Hong Nguyen ◽  
Nam Thi Pham ◽  
Hoang Dinh Vu ◽  
...  
Keyword(s):  
Field Trial ◽  
Colletotrichum Gloeosporioides ◽  
Inhibitory Concentration ◽  
Particle Sizes ◽  
Control Efficacy ◽  
Potent Inhibition ◽  
Nano Emulsion ◽  
Nano Formulation

Abstract During curcumin production in Vietnam, curcumin-removed turmeric oleoresin (CRTO) has been considered as a by-product. It costs to treat the by-product to prevent environmental pollution. In this study, the by-product was utilized as an active ingredient for preparing a botanical fungicide-based nano-emulsion and evaluated for its in vitro and in vivo control efficacy against Colletotrichum gloeosporioides, a causal agent of anthracnose of litchi, in the laboratory as well as a field trial. The nano-emulsion is colloidally stable and uniform with particle sizes of 95–250 nm. CRTO nano-emulsion significantly affected various Colletotrichum species. Notably, this nano-emulsion showed potent inhibition for the mycelial growth of C. gloeosporioides and solidly suppressed the development of anthracnose on litchi fruits. In the in vitro inhibition test, the equivalent half-maximal inhibitory concentration of CRTO in nano-formulation was 0.11 mg·mL−1, which was 3.0× and 6.1× lower than IC50 values of CRTO alone (0.33 mg·mL−1) and a mixture of curcuminoids (0.48 mg·mL−1), respectively. In the field trial, the litchi anthracnose infection was effectively controlled by nano-formulation. These results suggest that CRTO nano-emulsion could be used as an alternative to harmful synthetic fungicides to control anthracnose on litchi fruits.

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