Clinical Neuropharmacology最新文献

Objectives: Metronidazole central nervous system toxicity is a rare finding in patients receiving the medication. We report a peculiar case of metronidazole central nervous system toxicity in which both the underlying condition (Crohn disease) and the drugs used to treat it are potential causes of encephalopathy.

Methods: A 26-year-old female with 6-year history of Crohn's disease for 6 years presented acute-onset encephalopathy. We provide bibliographic evidence to support metronidazole toxicity and potential Crohn disease-associated neurologic involvement.

Results: The patient presented dystonia, cerebellar ataxia, and altered mental status. Magnetic resonance imaging of the brain revealed typical findings of metronidazole toxicity and white matter involvement of the centrum semiovale. Immunoelectrophoresis and immunofixation of serum and cerebrospinal fluid proteins were consistent with a systemic inflammatory process. We concluded on an association between drug toxicity and probable Crohn-associated neurologic involvement. Metronidazole was stopped and the patient was placed on vitamin therapy and diazepam to control dystonia. She deteriorated and was transferred to the intensive care unit where she expired.

Conclusions: Acute behavioral changes in a young patient constitute an emergency and differential diagnoses should include infective, inflammatory, metabolic, and toxic causes. Metronidazole is a potential toxic etiology.

Objective: Evaluate the safety and efficacy of zavegepant (BHV-3500), a recently approved nasal spray containing a third-generation calcitonin gene-related peptide receptor antagonist, for treating acute migraine attacks.

Methods: A comprehensive search was conducted across various databases up to 06/26/2023 to identify relevant randomized clinical trials (RCTs) on zavegepant's efficacy and safety in treatment of acute migraine attacks. Primary outcome: freedom from pain at 2 hours postdose. Safety outcomes were evaluated based on adverse events (AEs), with zavegepant 10 mg and placebo groups compared for incidence of AEs.

Results: Two RCTs, involving 2061 participants (1014 receiving zavegepant and 1047 receiving placebo), were quantitatively analyzed. An additional trial was included for qualitative synthesis. Zavegepant 10 mg exhibited a significantly higher likelihood of achieving freedom from pain at 2 hours postdose compared with the placebo group (risk ratio [RR] 1.54, 95% confidence interval [CI] 1.28 to 1.84). It also showed superior relief from the most bothersome symptoms at 2 hours postdose compared with placebo (RR 1.26, 95% CI 1.13 to 1.42). However, the zavegepant 10 mg group experienced a higher incidence of AEs compared with placebo (RR 1.78, 95% CI 1.5 to 2.12), with dysgeusia being the most reported AE (RR 4.18, 95% CI 3.05 to 5.72).

Conclusion: Zavegepant 10 mg is more effective than placebo in treating acute migraine attacks, providing compelling evidence of its efficacy in relieving migraine pain and most bothersome associated symptoms. Further trials are necessary to confirm its efficacy, tolerability, and safety in diverse clinic-based settings with varied patient populations.

Objective: This trial analyzed high-sensitivity C-reactive protein (hs-CRP), homocysteine (Hcy), and macrophage migration inhibitory factor (MIF) level in serum and their correlation with symptom severity and cognitive function in patients with schizophrenia (SP).

Methods: Sixty-eight SP patients were enrolled in the SP group, and 68 healthy volunteers were in the control (CN) group. Serum hs-CRP, Hcy, and MIF were measured, and symptom severity was assessed with the Positive and Negative Symptom Scale (PANSS). Cognitive function was determined with the MATRICS Consensus Cognitive Battery (MCCB). The SP group was divided into high PANSS score (PANSS ≥70 points) and low PANSS score (PANSS <70 points), or the mild cognitive dysfunction group and severe cognitive dysfunction group according to the median MCCB score. The correlation between serum hs-CRP, Hcy, and MIF levels and PANSS and MCCB scores in SP patients was examined by Pearson correlation analysis.

Results: SP patients had higher serum hs-CRP, Hcy, and MIF levels and showed higher PANSS scores and lower MCCB total score. Serum hs-CRP, Hcy, and MIF levels in the high PANSS group were higher than those in the low PANSS group and in the severe cognitive dysfunction group than in the mild cognitive dysfunction group. Serum hs-CRP, Hcy, and MIF levels in SP patients were positively correlated with PANSS total score and negatively correlated with MCCB total score.

Conclusion: High serum hs-CRP, Hcy, and MIF levels in SP patients are correlated with symptom severity and cognitive dysfunction.

Objective: Teratoma is a type of germ cell tumor that derived from early embryonic stem cells and germ cell lines, which can lead to a rare complication known as paraneoplastic encephalitis syndrome. Delayed removal of teratoma allows for continuing antigen presentation, inducing affinity maturation of the antibody and the generation of long-lived plasma cells that infiltrate both bone marrow and brain, which makes the patient nonresponsive to later removal of teratoma and refractory to immunotherapy. We present this rare case to remind clinicians to be vigilant for the recognition and removal of teratoma during the treatment of autoimmune encephalitis.

Methods: We retrospectively reviewed the clinical record of this 12-year 5-month-old female patient diagnosed with anti- N -methyl- d -aspartate receptor (anti-NMDAR) autoimmune encephalitis; her ovarian teratoma was unidentified on admission. She did not respond to immunosuppressive therapy until the mature ovarian teratoma identified 45 days after admission and removed the following day, nearly 2 months after symptom onset. This patient experienced nearly complete resolution of symptoms within the subsequent 2 weeks. In addition, we conducted a literature review of the clinical presentations and treatment of anti-NMDAR autoimmune encephalitis associated with ovarian teratoma in the pediatric population.

Results: Our findings suggest that clinicians should be vigilant for the recognition and removal of teratoma during the treatment of autoimmune encephalitis.

Conclusion: Female pediatric patients with suspected anti-NMDAR encephalitis should be screened for ovarian tumors immediately and treated in a multidisciplinary setting including neurology and obstetrics and gynecology.

Background: For hematology cancer patients, the process of dying is described as "troublesome." Qualitative studies have focused on views of healthcare professionals and caregiver stakeholders. To date, there have been no studies from the patient's perspective on facing death while in the last year of life.

Objective: The aim of this study was to develop an understanding of the hematology cancer patient's experience of the process of dying in the last year of life.

Methods: The study method was constructivist grounded theory using semistructured interviews, a constant comparison technique, and memoing to collection and analysis of data. The 21 participants were attending a UK cancer center, a cancer unit, or a hospice.

Results: This article describes 1 core category within the incurable hematology cancer illness trajectory through 4 subcategories: transitional phase, chronic phase, dying phase, and liminal phase.

Conclusion: This unique study illustrates that, although life can be prolonged, "facing death" still occurs upon hospitalization and relapse regularly over the illness trajectory.

Implications for practice: It is important that clinical practice acknowledges those participants in an incurable illness trajectory while living are focused on avoiding death rather than the ability to cure the disease. Services need to be responsive to the ambiguity of both living and dying by providing holistic management simultaneously, especially after critical episodes of care, to enhance the process of care in the last year of life, and assessment should incorporate the discussion of experiencing life-threatening events.

Background: A mindfulness-based stress reduction program combined with music therapy is one of the interventions designed to help patients cope with stress and depression.

Objective: The aim of this study was to examine the effects of an online mindfulness-based stress reduction program combined with music therapy on stress, depression, and psychological well-being in adult patients with cancer.

Methods: This study was a single-blinded, prospective, randomized-controlled experimental design. One hundred twenty cancer patients were recruited (60 each in the intervention and control groups). Patients in the intervention group received a 10-day mindfulness-based stress reduction program combined with music therapy. Stress was measured with the State Trait Anxiety Inventory-State, psychological well-being was measured with the Psychological Well-being Scale, and depression was measured with the Beck Depression Inventory at baseline and the end of the study.

Results: The intervention group showed significantly lower stress and depression scores than the control group in the total scores at 10 days ( P < .05). The intervention group had significantly higher scores in the psychological well-being ( P < .001) than the control group at 10 days. Intragroup comparison of the stress and depression scores showed that posttest score of the intervention group was significantly lower than its pretest score ( P < .05).

Conclusion: Mindfulness-based stress reduction program combined with music therapy reduced the levels of stress and depressive symptoms and improved psychological well-being in cancer patients.

Implications for practice: A nurse-led mindfulness-based stress reduction program combined with music therapy is an innovative and effective psychological intervention that may be integrated with regular patient care for adults receiving treatment of cancer.

Objective: Burning mouth syndrome (BMS) is an intractable chronic pain disorder characterized by a burning sensation without organic abnormalities in the oral mucosa. Amitriptyline may be effective for BMS or, conversely, may exacerbate pain. QTc is necessary for monitoring psychotropic adverse effects, but it is not known if it is a predictor of efficacy for BMS. We investigated the efficacy of amitriptyline in BMS and its effect on QTc.

Methods: Visual analog scale and electrocardiogram were examined before and 1 month after treatment in 51 consecutive patients diagnosed with BMS according to the International Classification of Headache Disorders, Third Edition (ICHD-3), criteria and treated with amitriptyline.

Results: There were 26 amitriptyline responders and 25 nonresponders, with no differences in age, sex, and amitriptyline dosage. Amitriptyline responders showed little change in QTc, whereas nonresponders showed a trend toward significantly shorter QTc. Changes in visual analog scale correlated statistically significantly with changes in QTc (Spearman rank correlation coefficient: 0384; P = 0.0054). The degree of pain tended to worsen with QTc shortening.

Conclusion: Amitriptyline provides analgesia in about half of BMS patients, but some BMS patients have worse pain with amitriptyline. Not only do changes in the QTc detect amitriptyline adverse effects with prolongation, but also, conversely, its shortening predicts amitriptyline ineffectiveness.

Objective: In this report, we discuss the case of a patient with minimally conscious state (MCS) whose clinical condition significantly improved after Zolpidem therapy. We aim to provide supportive evidence for inclusion of zolpidem trials in patients with MCS.

Methods: Our team used electronic medical records, direct patient care experiences, and literature review to obtain information for this case report.

Results: Twice daily zolpidem therapy led to significant clinical improvement in our patient with MCS. In addition, this improvement was maintained throughout an increasingly arduous medical course.

Conclusions: Minimally conscious state is a disorder with limited proven therapeutic options. Zolpidem administration has demonstrated immense benefit in a select population of patients, including ours. Given the potential for great improvement with limited downside, zolpidem trial presents an intriguing treatment option. Further clarification of prognostic features to stratify responders and nonresponders to therapy is needed.

Objective: Data on the pharmacological treatment of gambling disorder are limited. Silymarin (derived from milk thistle) has antioxidant properties. The goal of the current study was to determine the efficacy and tolerability of silymarin in adults with gambling disorder.

Methods: Forty-three individuals (18 [41.9%] women; mean age=49.61 [±13.1] years) with gambling disorder entered an 8-week, double-blind, placebo-controlled study. Dosing of silymarin ranged from 150 to 300 mg twice a day. The primary outcome measure was the Yale Brown Obsessive Compulsive Scale Modified for Pathological Gambling (PG-YBOCS). Secondary outcome measures comprised the Gambling Symptom Assessment Scale and measures of depression and anxiety. Outcomes were examined using mixed-effect models.

Results: Silymarin did not statistically differentiate from the placebo on any of the outcome measures of interest, in terms of treatment group×time interactions. There was a robust response in the placebo group (57% reduction on the PG-YBOCS), and on average there was a 56% reduction in YBOCS score for the milk thistle.

Conclusions: The findings of this study do not support the use of silymarin/milk thistle in the treatment of gambling disorder but highlight the large placebo response seen in gambling disorder. Treatment interventions for gambling disorder need to better understand and address the placebo response.

Trial registration: ClinicalTrials.gov identifier: NCT02337634.