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The regulation of brain cytochrome P450 enzymes (CYPs) is different compared with respective hepatic enzymes. This may result from anatomical bases and physiological functions of the two organs. The brain is composed of a variety of functional structures built of different interconnected cell types endowed with specific receptors that receive various neuronal signals from other brain regions. Those signals activate transcription factors or alter functioning of enzyme proteins. Moreover, the blood-brain barrier (BBB) does not allow free penetration of all substances from the periphery into the brain. Differences in neurotransmitter signaling, availability to endogenous and exogenous active substances, and levels of transcription factors between neuronal and hepatic cells lead to differentiated expression and susceptibility to the regulation of CYP genes in the brain and liver. Herein, we briefly describe the CYP enzymes of CYP1-3 families, their distribution in the brain, and discuss brain-specific regulation of CYP genes. In parallel, a comparison to liver CYP regulation is presented. CYP enzymes play an essential role in maintaining the levels of bioactive molecules within normal ranges. These enzymes modulate the metabolism of endogenous neurochemicals, such as neurosteroids, dopamine, serotonin, melatonin, anandamide, and exogenous substances, including psychotropics, drugs of abuse, neurotoxins, and carcinogens. 3-O-Acetyl-11-keto-β-boswellic research buy The role of these enzymes is not restricted to xenobiotic-induced neurotoxicity, but they are also involved in brain physiology. Therefore, it is crucial to recognize the function and regulation of CYP enzymes in the brain to build a foundation for future medicine and neuroprotection and for personalized treatment of brain diseases.Background To investigate the influence of age on prediction error (PE) after cataract surgery in very elderly (VE) patients aged more than 90 years.Methods We retrospectively analyzed 66 eyes of patients aged ≥90 years (VE group) who underwent phacoemulsification and intraocular lens (IOL) implantation. As the control group (CG), we investigated 121 eyes of patients aged 70-89 years who underwent the same surgery. PE was calculated 1 month post-surgery as the actual postoperative spherical equivalent minus the target diopter, which was calculated using the Sanders-Retzlaff-Kraff/T formula. The absolute and arithmetic PE were compared between the two groups. The factors affecting absolute PE outside ±0.5 diopter (D) and ±1.0 D were determined through logistic regression analysis with the variables age, sex, axial length (AL), average corneal power, preoperative best-corrected visual acuity, target diopter, and coexisting pseudoexfoliation syndrome.Results The absolute PE was significantly larger in the VE group than that in the CG (0.60 ± 0.52 D and 0.34 ± 0.25 D, respectively; P less then .001). There was no significant difference in terms of arithmetic PE between the two groups (-0.06 ± 0.79 D and -0.07 ± 0.42 D, respectively; P = .653). In the logistic regression analysis, age was significantly associated with absolute PE outside ±0.50 D (Odds ratio [OR] 1.05). Age and AL were significantly associated with absolute PE outside ±1.0 D (OR 1.24 and 0.20, respectively).Conclusions Absolute PE tended to increase in the cataract surgery of VE patients.Purpose Treatment of hypertension has recently shown remarkable advances. It is quite important to survey the current general status of blood pressure (BP) and recent changes to verify whether people are benefitting from these advances. The present study aimed to investigate the current status of, and recent changes in, BP, the prevalence and treatment rate of hypertension, the achievement rate of target BP, and salt intake in Japanese individuals. Methods Recent changes in salt intake as well as BP, the prevalence and treatment rate of hypertension, and the rate of achievement of target BP were investigated in participants in our yearly physical checkup program from 2009 to 2018 (n = 79,789). Individual salt intake was assessed by estimating 24-hour urinary sodium excretion using a spot urine sample. Results The prevalence of hypertension did not change, but the treatment rate of hypertension (from 64% to 75%) and the achievement rate of the target BP improved during the period (from 35% to 57%). BP decreased, prominently in hypertensive participants under antihypertensive treatment (from 133 ± 14/84 ± 9 to 128 ± 13/76 ± 10 mmHg). Salt intake did not decline noticeably during the 10 years of observation. Conclusions The prevalence of hypertension did not change, but the treatment rate of hypertension and the achievement rate of the target BP improved during a recent 10-year period. These findings suggest that improved pharmacological management of hypertension resulted in a gradual reduction in BP levels, but lifestyle modification has not yet really taken root in the Japanese general population.Patient navigation is increasingly used to link and (re)engage persons with human immunodeficiency virus (HIV) to care. A more holistic understanding of patient navigation can be achieved by exploring the experiences of navigators, the persons who comprise half of the navigation process. We conducted a meta-synthesis of navigator experiences with HIV patient navigation using a phenomenological approach. We identified nine relevant studies. Data were analyzed using thematic synthesis. Analysis identified two overarching themes relating to (1) the breadth and depth of bidirectional relationships and functional activities that navigators undertake to connect their clients to care and (2) the inherently personal experience of delivering navigation services. From these thematic findings, we recommend that HIV patient navigators exhibit capacity and expertise in developing and maintaining interpersonal relationships with clients and health care systems/providers and develop self-care practices and emotional boundaries with clients. Our review seeks to advance public health research and practice by articulating key experiences and perspectives of HIV patient navigators, drawing findings and recommendations applicable to the development, implementation, and evaluation of HIV patient navigation.
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