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The use of autologous peritoneum for mucosal replacement following ileal neobladder construction: a novel technique in a porcine model

ABSTRACT: The use of autologous peritoneum for mucosal replacement following ileal neobladder construction: a novel technique in a porcine model

PROVIDER: PRJNA608128 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11147377_1.fastq.gz	Fastqsanger.gz
	SRR11147377_2.fastq.gz	Fastqsanger.gz
	SRR11147378_1.fastq.gz	Fastqsanger.gz
	SRR11147378_2.fastq.gz	Fastqsanger.gz
	SRR11147379_1.fastq.gz	Fastqsanger.gz

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The use of autologous peritoneum for mucosal replacement following ileal neobladder construction: a novel technique in a porcine model

Project description:Background:The transposed intestinal segments maintain their absorptive and secretive functions which may lead to metabolic disorders after ileal neobladder construction. The aim of this study was to develop a novel technique to reduce the complications of orthotopic urinary diversion in a porcine model. Methods: An ileal neobladder procedure was performed in eight female pigs. Four pigs (experimental group) received mucosal replacement of the neobladder using autologous peritoneum, while the other four pigs (control group) received a normal U-shaped ileal neobladder. After three months, the neobladder was evaluated using IVU, cystograms and cystoscopy. Blood biochemistries, urine samples and venous gas analyses were obtained preoperatively and postoperatively. The neobladder was then harvested to assess pathological findings. Results: The mean (range) operating time was 248 (224-287) min in the control group and 325 (296-360) min in the experimental group. All animals but one from the experimental group survived to the designated endpoints. Postoperative IVU revealed that the urinary tracts were patent and that there was no hydronephrosis or dilated ureter. Cystograms demonstrated a spherical neobladder. Cystoscopy showed a smooth neobladder wall. Histological analysis revealed that the peritoneum-ileal seromuscular flap surface was lined with the urothelial layers. Transcriptome comparison showed the maximum similarity between mucosa of neobladder from experimental group and mucosa of normal bladder. Conclusions: The novel technique is shown to be feasible and reproducible in a porcine model. The imageological, histological, and transcriptometric analyses all confirmed that autologous peritoneum can be used as a natural biological reconstruction material.

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In vitro effects of equine autologous conditioned serum and autologous equine serum on inflamed chondrocyte pellets

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Sporulation: TAO3 replacement strains

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Aberrant expression of the DCT gene is implicated in the hyperpigmentation of the visceral peritoneum of the chicken

Project description:Hyperpigmentation of the visceral peritoneum (HVP) has recently garnered significant attention within the poultry industry due to its potential implications for the health of afflicted animals and its adverse effects on the appearance of commercial chicken carcasses. Unfortunately, the heritable characteristics of HVP are not yet fully understood. Motivated by poultry industry demand, we deployed multi-omics comparing the clinical HVP and normal samples profiling the potential regulating molecular landscape in cell and genome resolution, specifically, aiming to decipher the precise molecular genomic marker. Specifically, we identified the signature genes for the HVP phenotype and found that the signature gene of melanogenesis strongly enriched in the HVP group. At the melanocyte level, overexpression of the DCT gene can promote the proliferation of melanocytes, with exogenous Tyr addition. On the contrary, significantly lower melanin content in the supernatant of cells was detected after siRNA interference relative to untreated cells. Through single-cell sequencing, the hyperexpression of melanogenesis-associated genes in melanocytes was echoed. In summary, molecular features of the HVP phenotype were systematically revealed, which may partially explain the strong heterogeneities of the peritoneum phenotype. The hyperpigmentation of the peritoneum is attributed to an excess deposition of melanin, where the DCT hyperexpression can be regarded as a molecular marker related to the deposition of peritoneal melanin. Future directions should deploy gene editing technology to alert the gene expression of DCT to change the phenotype of pigmentation in the visceral peritoneum.

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