Nitrogen-containing bisphosphonate induces enhancement of OPG expression and inhibition of RANKL expression via inhibition of farnesyl pyrophosphate synthase to inhibit the osteogenic differentiation and calcification in vascular smooth muscle cells.

Background: Nitrogen-containing bisphosphonate(N-BP)had been found to inhibit the osteogenic differentiation and calcification in vascular smooth muscle cells (VSMCs), but the mechanism is not clear. We intend to verify that N-BP induces enhancement of OPG expression and inhibition of RANKL expression via inhibition of farnesyl pyrophosphate synthase(FPPS) to inhibit the osteogenic differentiation and calcification in VSMCs.

Methods: β-glycerophosphate (β-GP) was used to induce the osteogenic differentiation and calcification in VSMCs.

Non-nitrogen-containing bisphosphonates and nitrogen-containing bisphosphonates for the treatment of atherosclerosis and vascular calcification: A meta-analysis.

Background: The role of non-nitrogen-containing bisphosphonates (non-N-BPs) and nitrogen-containing bisphosphonates (N-BPs) in the treatment of atherosclerosis (AS) and vascular calcification (VC) is uncertain. This meta-analysis was conducted to evaluate the efficacy of non-N-BPs and N-BPs in the treatment of AS and VC.

Methods: The PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure, and Wanfang databases were searched from their inception to July 5th, 2023.

Endoscopic parathyroidectomy versus open parathyroidectomy for patients with refractory secondary hyperparathyroidism: a meta-analysis.

Introduction: Endoscopic parathyroidectomy(EPTX) has been gradually introduced as a minimally invasive treatment for refractory secondary hyperparathyroidism (SHPT). However, it is uncertain about the efficacy and safety compared between EPTX and open parathyroidectomy (OPTX) for refractory SHPT.

Aim: This meta-analysis was conducted to evaluate the efficacy and safety of EPTX and OPTX for secondary hyperp arathyroidism (SHPT).

Comparison of different anastomosis angles in radiocephalic fistula with modified functional end-to-side anastomosis.

Objective: Functional vein end to arterial side (ETS) anastomosis uses vein side to arterial side anastomosis with distal vein ligation, which is different from traditional ETS anastomosis. To date, there are no studies concerning different anastomotic angles of fistula with functional ETS anastomosis. The purpose of the study was to analyze the clinical outcomes concerning different anastomotic angles of functional ETS anastomosis in radiocephalic fistula.

Enhancing Wettability of CuP/Cu Systems through Doping with Si, Sn, and Zr Elements: Insights from First Principles Analysis.

Explaining the wetting mechanism of Cu-P brazing materials and Cu remains challenging. This fundamental research aims to reveal the wettability mechanism of Si, Sn, and Zr doping on the interfacial bond strength of the CuP/Cu system through the first principles study. We carried out several sets of calculations to test the validity of the result; included in the work are those used to establish the interfacial structure and to analyze the effect of doping on the wettability.

Microwave ablation versus radiofrequency ablation for patients with primary and secondary hyperparathyroidism: a meta-analysis.

Objective: Thermal ablation, including microwave ablation (MWA) and radiofrequency ablation (RFA), has been recommended for the treatment of primary hyperparathyroidism (PHPT) and refractory secondary hyperparathyroidism (SHPT). This meta-analysis was conducted to evaluate the efficacy and safety of MWA and RFA in patients with PHPT and refractory SHPT.

Methods: Databases including PubMed, EMbase, the Cochrane Library, CNKI (China National Knowledge Infrastructure), and Wanfang were searched from inception to December 5, 2022.

Efficacy and safety of tolvaptan versus placebo in the treatment of patients with autosomal dominant polycystic kidney disease: a meta-analysis.

Objective: The objective of this meta-analysis was to compare the efficacy and drug safety of tolvaptan with placebo for autosomal dominant polycystic kidney disease (ADPKD).

Methods: The PubMed, Embase, and Cochrane Library databases were searched from inception to September 10, 2021. Eligible studies comparing tolvaptan and placebo in the treatment of patients with ADPKD were included.

Efficacy and safety of tacrolimus versus corticosteroid as initial monotherapy in adult-onset minimal change disease: a meta-analysis.

Objective: The objective of this meta-analysis was to compare the efficacy and safety of tacrolimus (TAC) monotherapy versus corticosteroid as initial monotherapy in adult-onset minimal change disease (MCD) patients.

Methods: Databases including PubMed, Embase, the Cochrane Library, China National Knowledge Infrastructure, and Wanfang database were searched from the inception to March 20, 2021. Eligible studies comparing TAC monotherapy and corticosteroid as initial monotherapy for adult-onset MCD patients were included.

Efficacy and safety of tacrolimus monotherapy versus tacrolimus-corticosteroid combination therapy for idiopathic membranous nephropathy: A meta-analysis.

Objective: The objective of this meta-analysis was to compare the efficacy and safety of tacrolimus (TAC) monotherapy versus TAC-corticosteroid combination therapy in idiopathic membranous nephropathy (IMN) patients.

Methods: Databases including PubMed, Embase, the Cochrane Library, China National Knowledge Infrastructure, and Wanfang database were searched from inception to January 10, 2021. Eligible studies comparing TAC monotherapy and TAC-corticosteroid combination therapy in IMN patients were included.

Energy and CO emissions modeling for unconventional machining industry considering processing characteristics.

Unconventional machining of WEDM (Wire Electrical Discharge Machining) is playing an increasingly important role in the manufacturing industry. The processing efficiency and resource consumption of this method are research hotspots from the perspective of sustainable development. Energy and CO emissions modeling of process machining have been recognized as an effective and economical ways to achieve energy-saving, emission-reducing and to improve process efficiency.

Efficacy and safety of tacrolimus monotherapy versus cyclophosphamide-corticosteroid combination therapy for idiopathic membranous nephropathy: A meta-analysis.

Objective: The objective of this meta-analysis was to compare the efficacy and safety of tacrolimus (TAC) monotherapy versus cyclophosphamide (CTX)-corticosteroid combination therapy in idiopathic membranous nephropathy (IMN) patients.

Methods: Databases including the PubMed, Embase, the Cochrane Library, China National Knowledge Infrastructure, and Wanfang databases were searched from inception to October 20, 2020. Eligible studies comparing TAC monotherapy and CTX-corticosteroid combination therapy in IMN patients were included.

Role Overload and Work Performance: The Role of Psychological Strain and Leader-Member Exchange.

The relation between role overload and work performance remains insufficiently understood. Drawing upon conservation of resources theory, we expected role overload to negatively relate to performance through psychological strain and this relation to be buffered by leader-member exchange (LMX). Study 1 ( = 212) examined depression as a severe type of strain that mediates between role overload and in-role performance, job dedication, and voice behavior.

A meta-analysis of traditional and functional end-to-side anastomosis in radiocephalic fistula for dialysis access.

Objective: Functional vein end to arterial side (ETS) anastomosis uses vein side to arterial side (STS) anastomosis with distal vein ligation, which can achieve similar effects as those of ETS after STS anastomosis. The purpose of the study was to provide a meta-analysis to compare the clinical outcomes between traditional and functional ETS anastomosis in radiocephalic fistula for dialysis access.

Methods: Databases including PubMed, EMbase, the Cochrane Library, CNKI, Wanfang database were searched from the inception to February 6, 2020.

Low-site versus traditional peritoneal dialysis catheterization: A meta-analysis.

Background: The objective of this study was to compare the complications of low-site peritoneal dialysis (PD) catheter placement and traditional open surgery in peritoneal dialysis catheter insertion.

Methods: The following databases were searched from inception to September 6, 2019: PubMed, Embase, the Cochrane Library, China National Knowledge Infrastructure, and Wanfang. Eligible studies comparing low-site PD catheter placement and traditional open surgery in peritoneal dialysis catheter insertion were included.

Paricalcitol vs. cinacalcet for secondary hyperparathyroidism in chronic kidney disease: A meta-analysis.

Paricalcitol and cinacalcet have been recommended to reduce parathyroid hormone (PTH) levels for patients with secondary hyperparathyroidism (SHPT) and chronic kidney disease (CKD), and they are able to reduce the risk of hypercalcemia and hyperphosphatemia. However, to date, it has remained uncertain which is the better drug. The aim of the present meta-analysis was to evaluate the effects on PTH, calcium and phosphorus metabolism between the two drugs.

Thermal ablation versus parathyroidectomy for secondary hyperparathyroidism: A meta-analysis.

Objective: Thermal ablation and parathyroidectomy (PTX) have been recommended for patients with secondary hyperparathyroidism (SHPT). However, it is uncertain which is the better method. The aim of the present meta-analysis was to evaluate the efficacy and surgical complications of the two treatment methods.

Metabolism of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine by mitochondrion-targeted cytochrome P450 2D6: implications in Parkinson disease.

1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) is a neurotoxic side product formed in the chemical synthesis of desmethylprodine opioid analgesic, which induces Parkinson disease. Monoamine oxidase B, present in the mitochondrial outer membrane of glial cells, catalyzes the oxidation of MPTP to the toxic 1-methyl-4-phenylpyridinium ion (MPP(+)), which then targets the dopaminergic neurons causing neuronal death. Here, we demonstrate that mitochondrion-targeted human cytochrome P450 2D6 (CYP2D6), supported by mitochondrial adrenodoxin and adrenodoxin reductase, can efficiently catalyze the metabolism of MPTP to MPP(+), as shown with purified enzymes and also in cells expressing mitochondrial CYP2D6.

Silencing of IkBβ mRNA causes disruption of mitochondrial retrograde signaling and suppression of tumor growth in vivo.

A number of studies show that mitochondrial DNA (mtDNA) depletion and attendant activation of retrograde signaling induces tumor progression. We have reported previously that activation of a novel nuclear factor-Kappa B pathway is critical for the propagation of mitochondrial retrograde signaling, which induces both phenotypic and morphological changes in C2C12 myoblasts and A549 lung carcinoma cells. In this study, we investigated the role of stress-induced nuclear factor-Kappa B in tumor progression in xenotransplanted mice.

Role of calcineurin, hnRNPA2 and Akt in mitochondrial respiratory stress-mediated transcription activation of nuclear gene targets.

Pathophysiological conditions causing mitochondrial dysfunction and altered transmembrane potential (psim) initiate a mitochondrial respiratory stress response, also known as mitochondrial retrograde response, in a variety of mammalian cells. An increase in the cytosolic Ca2+ [Ca2+]c as part of this signaling cascade activates Ca2+ responsive phosphatase, calcineurin (Cn). Activation of IGF1R accompanied by increased glycolysis, invasiveness, and resistance to apoptosis is a phenotypic hallmark of C2C12 skeletal muscle cells subjected to this stress.

Human liver mitochondrial cytochrome P450 2D6--individual variations and implications in drug metabolism.

Constitutively expressed human cytochrome P450 2D6 (CYP2D6; EC 1.14.14.

Oncogene-mediated inhibition of glycogen synthase kinase 3 beta impairs degradation of prolactin receptor.

Prolactin receptors (PRLr) expressed in a majority of breast cancer are activated by prolactin and growth hormone. The PRLr is commonly stabilized in human breast cancer due to decreased phosphorylation of residue Ser(349), which, when phosphorylated, recruits the beta Trcp E3 ubiquitin ligase and facilitates PRLr degradation. Here, we show that constitutive oncogenic signaling downstream of ErbB2 and Ras stabilizes PRLr via inhibitory phosphorylation of glycogen synthase kinase-3beta (GSK3 beta) on Ser(9).

A distinctive physiological role for IkappaBbeta in the propagation of mitochondrial respiratory stress signaling.

The NFkappaBs regulate an array of physiological and pathological processes, including propagation of mitochondrial respiratory stress signaling in mammalian cells. We showed previously that mitochondrial stress activates NFkappaB using a novel calcineurin-requiring pathway that is different from canonical or non-canonical pathways. This study shows that IkappaBbeta is essential for the propagation of mitochondrial stress signaling.

Targeting beta-transducin repeat-containing protein E3 ubiquitin ligase augments the effects of antitumor drugs on breast cancer cells.

beta-Transducin repeat-containing proteins (beta-TrCP) serve as substrate recognition component of E3 ubiquitin ligases that control stability of important regulators of cell cycle and signal transduction. beta-TrCP function is essential for the induction of nuclear factor kappaB transcriptional activities, which play a key role in proliferation and survival of cancer cells and are often constitutively up-regulated in human breast cancers. Here we show that inhibition of beta-TrCP either by RNAi approach or by forced expression of a dominant-negative beta-TrCP mutant suppresses growth and survival of human breast cancer cells.

Negative regulation of prolactin receptor stability and signaling mediated by SCF(beta-TrCP) E3 ubiquitin ligase.

Ubiquitin-dependent degradation of hormone receptors is emerging as a key mechanism that regulates the magnitude and duration of hormonal effects on cells and tissues. The pituitary hormone prolactin (PRL) is involved in regulating cell differentiation, proliferation, and survival. PRL engages its receptor (PRLR) to initiate various signaling cascades, including the phosphorylation and activation of Stat5.