Introduction to Purinergic Signaling.

Introduction to Purinergic Signaling. Methods Mol Biol. 2020;2041:1-15 Authors: Burnstock G Abstract Purinergic signaling was proposed in 1972, after it was demonstrated that adenosine 5'-triphosphate (ATP) was a transmitter in nonadrenergic, noncholinergic inhibitory nerves supplying the guinea-pig taenia coli. Later, ATP was identified as an excitatory cotransmitter in sympathetic and parasympathetic nerves, and it is now apparent that ATP acts as a cotransmitter in most, if not all, nerves in both the peripheral nervous system and central nervous system (CNS). ATP acts as a short-term signaling molecule in neurotransmission, neuromodulation, and neurosecretion. It also has potent, long-term (trophic) roles in cell proliferation, differentiation, and death in development and regeneration. Receptors to purines and pyrimidines have been cloned and characterized: P1 adenosine receptors (with four subtypes), P2X ionotropic nucleotide receptors (seven subtypes) and P2Y metabotropic nucleotide receptors (eight subtypes). ATP is released from different cell types by mechanical deformation, and after release, it is rapidly broken down by ectonucleotidases. Purinergic receptors were expressed early in evolution and are widely distributed on many different nonneuronal cell types as well as neurons. Purinergic signaling is involved in embryonic development and in the activities of stem cells. There is a growing understanding about the pathophysiology of purinergi...
Source: Mol Biol Cell - Category: Molecular Biology Authors: Tags: Methods Mol Biol Source Type: research

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ConclusionsWomen whose treatment did not conform to NCCN guidelines were not associated with worse outcomes.
Source: The American Journal of Surgery - Category: Surgery Source Type: research
This study reviewed the applicability of laparoscopy in this challenging setting.MethodsRetrospective analysis of patients who underwent trans-abdominal re-operative rectal surgery from 2010-2019 was performed.ResultsSeventy-eight patients [35 females (45%); BMI 25kg/m2) were included. Reasons for reoperation were recurrent cancer in 18 (43%) patients and anastomotic failure in 57 (73%). Twenty-two (28%) had laparoscopic surgery and 4 had attempted laparoscopy converted to laparotomy. A higher success rate was noted for laparoscopy with prior laparoscopic surgery. Benefits of laparoscopy included significant reduction in l...
Source: The American Journal of Surgery - Category: Surgery Source Type: research
CONCLUSION: Primary Signet ring cell carcinoma of the prostate is a rare and aggressive histological variant of adenocarcinomas of the prostate. Treatment is the same as classical adenocarcinoma with an emphasis on aggressive multimodal treatment. PMID: 31797810 [PubMed - in process]
Source: Archivos Espanoles de Urologia - Category: Urology & Nephrology Tags: Arch Esp Urol Source Type: research
CONCLUSION: The analysis of the presence of 5T polymporphism in CBAVD patients may add information when predicting the outcome of assisted reproductive techniques. PMID: 31797807 [PubMed - in process]
Source: Archivos Espanoles de Urologia - Category: Urology & Nephrology Tags: Arch Esp Urol Source Type: research
Authors: Yalcin S, Kaya E, Ebiloglu T, Akay S, Zor M, Sarıkaya S, Yilmaz S, Bedir S Abstract OBJECTIVES: In this research, we designed a cognitive fusion(CF) prostate biopsy(PB) (CFPB) technique by examining the multiparametric MRI of prostate (MP_MRI-P) images in a smart-phone near the trans-rectal ultrasound (TRUS) device, and examined the results. METHODS: Between January 2011 and January 2017, a total of 344 men who had PB enrolled in this study. Group 1 had a minimum of a 12-core standard TRUS PB (TRUSPB). Group 2 had CFPB while examining the MP_ MRI-P images in a smartphone near the TRUS device. A minimu...
Source: Archivos Espanoles de Urologia - Category: Urology & Nephrology Tags: Arch Esp Urol Source Type: research
Authors: Park MG, Cho MC, Cho SY, Lee JW Abstract OBJECTIVES: To compare the antibiotic susceptibility of Escherichia coli (E. coli) between community- acquired acute bacterial prostatitis (CA-ABP) and ABP following transrectal ultrasound-guided prostate biopsy (Bx-ABP). METHODS: A total of 4,383 patients underwent prostate biopsy from January 2005 to June 2014. Among these patients, 34 had Bx-ABP; of which 22 patients had E. coli identified in their urine or blood culture. E. coli was also identified in 91 out of 209 patients with CA-ABP in urine or blood culture. We investigated patient and microbiological ch...
Source: Archivos Espanoles de Urologia - Category: Urology & Nephrology Tags: Arch Esp Urol Source Type: research
CONCLUSIONS: The severity and duration of MS is a risk factor for rUTIs. Urodynamic risk factors are compatible with a lower contractile capacity in patients with rUTIs, while the existence of NLUTD would not imply any specific risk factor. PMID: 31797803 [PubMed - in process]
Source: Archivos Espanoles de Urologia - Category: Urology & Nephrology Tags: Arch Esp Urol Source Type: research
Authors: Murray NP, Aedo S, Fuentealba C, Salazar A, Reyes E, Lopez MA, Minzer S Abstract INTRODUCTION: Minimal residual disease (MRD) is that which persists after curative treatment for prostate cancer. It has the potential to grow and cause metastasis. The detection of circulating prostate cells (CPCs) and bone marrow micro-metastasis could represent different sub-types of MRD. OBJECTIVE: To determine biochemical failure free survival and time to failure, the presence of circulating prostate cells and bone marrow micro-metastasis in men treated for low risk prostate cancer. HYPOTHESIS: The presence of MRD...
Source: Archivos Espanoles de Urologia - Category: Urology & Nephrology Tags: Arch Esp Urol Source Type: research
CONCLUSION: Video-endoscopic inguinal lymphadenectomy contributes to less morbidity with a lower- rate of cutaneous complications and less severity. Furthermore, VEIL gives lower hospital stay without changing in initial oncologic outcomes. Although we need longer series to stablish the oncologic long-term results. PMID: 31797801 [PubMed - in process]
Source: Archivos Espanoles de Urologia - Category: Urology & Nephrology Tags: Arch Esp Urol Source Type: research
CONCLUSION: Remote ischemic preconditioning did not modify irisin or troponin I expression, independent of the time of collection. PMID: 31799981 [PubMed - as supplied by publisher]
Source: Jornal Brasileiro de Nefrologia - Category: Urology & Nephrology Tags: J Bras Nefrol Source Type: research
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