The dysregulation of N6-methyladenosine (m6A) RNA modification is widely recognized for its crucial roles in various diseases, including pulmonary hypertension (PH). Prior studies have highlighted the significant role of methyltransferase-like 3 (METTL3) in the pathogenesis of PH. Nevertheless, the potential and underlying mechanisms of METTL3 and its inhibitors as targets for PH treatment require further elucidation.
View Article and Find Full Text PDFObjective: Two-tiered preference signaling has been implemented in the radiology residency application system to reduce congestion in the setting of high-volume applications. Signals are an indicator of strong interest that an applicant can transmit to a limited number of programs. This study assessed the impact of program signaling on interview invitations, how applicants strategically used signals based on their application's competitiveness, and applicants' attitudes toward the current signaling system.
View Article and Find Full Text PDFBackground: Extrachromosomal circular DNAs (eccDNAs) have been reported to play a key role in the occurrence and development of various diseases. However, the characterization and role of eccDNAs in pulmonary arterial hypertension (PAH) remain unclear.
Methods: In the discovery cohort, we first explored eccDNA expression profiles by Circle-sequencing analysis.
The niobium oxide dihalides have recently been identified as a new class of van der Waals materials exhibiting exceptionally large second-order nonlinear optical responses and robust in-plane ferroelectricity. In contrast to second-order nonlinear processes, third-order optical nonlinearities can arise irrespective of whether a crystal lattice is centrosymmetric. Here, we report third harmonic generation (THG) in two-dimensional (2D) transition metal oxide iodides, namely NbOI and TaOI.
View Article and Find Full Text PDFWood-plastic composites (WPC) with good mechanical and physical properties are desirable products for manufacturers and customers, and interfacial bond strength is one of the most critical factors affecting WPC performance. To verify that a higher interfacial bond strength between wood and thermoplastics improves WPC performance, wood veneer-thermoplastic composites (VPC) and oriented strand-thermoplastic composites (OSPC) were fabricated using hot pressing. The effects of the coupling agent (KH550 or MDI) and the thermoplastic (LDPE, HDPE, PP, or PVC) on the interfacial bond strength of VPC, and the mechanical and physical properties of OSPC, were investigated.
View Article and Find Full Text PDFIntroduction: The lateral parabrachial nucleus (LPBN) is considered to be a brain site of the pyrogenic action of prostaglandin (PG) E2 outside of the preoptic area. Yet, the role of the LPBN in fever following a systemic immune challenge remains poorly understood.
Methods: We examined the expression of cyclooxygenase-2 (COX-2) and microsomal PGE synthase-1 (mPGES-1) in the LPBN after the intraperitoneal injection of lipopolysaccharide (LPS).
Zhongguo Ying Yong Sheng Li Xue Za Zhi
March 2012
Objective: To investigate the role of oxotremorine in arginine vasopressin (AVP)-induced hypothermia and its effects on the behavioral thermoregulatory response.
Methods: Core temperature (Tc), brown adipose tissue (BAT) temperature and motor activities were monitored in undisturbed female SD rats using radiotelemetry. The behavioral thermoregulatory response was monitored in rats using radiotelemetric temperature gradient apparatus.
Objective: To measure simultaneously the time course for the circadian rhythm of brown adipose tissue(BAT) thermogenesis and core temperature, and analyzing their temporal relationship.
Methods: The circadian rhythm of core temperature (Tc), BAT temperature (T(BAT)), axillary temperature (Tax) and motor activity were simultaneously measured by telemetry in adult male Sprague-Dawley rats at an ambient temperature of 22 degrees C during a 12-h light:12-h dark photoperiod (lights on at 06:00 h and lights off at 18:00 h).
Results: (1) T(BAT) was 0.
Aims: It is well known that physostigmine (PHY) and other anticholinesterase (anti-ChE) agents induce hypothermia in rodents but little is known about the mechanism of action. Because arginine vasopressin (AVP) has been found to be an endogenous antipyretic molecule in the CNS, we determined if PHY-induced hypothermia is linked to the endogenous release of AVP.
Main Methods: Core temperature and motor activity were monitored by telemetry in rats maintained at an ambient temperature of 25 degrees C.