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1.
Plant Sci ; 340: 111937, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38043729

RESUMO

Due to the increasing demand for high-quality and high fiber-yielding cotton (Gossypium spp.), research into the development of stress-resilient cotton cultivars has acquired greater significance. Various biotic and abiotic stressors greatly affect cotton production and productivity, posing challenges to the future of the textile industry. Moreover, the content and quality of cottonseed oil can also potentially be influenced by future environmental conditions. Apart from conventional methods, genetic engineering has emerged as a potential tool to improve cotton fiber quality and productivity. Identification and modification of genome sequences and the expression levels of yield-related genes using genetic engineering approaches have enabled to increase both the quality and yields of cotton fiber and cottonseed oil. Herein, we evaluate the significance and molecular mechanisms associated with the regulation of cotton agronomic traits under both normal and stressful environmental conditions. In addition, the importance of gossypol, a toxic phenolic compound in cottonseed that can limit consumption by animals and humans, is reviewed and discussed.


Assuntos
Gossypium , Gossipol , Humanos , Gossypium/metabolismo , Óleo de Sementes de Algodão/metabolismo , Fibra de Algodão , Gossipol/metabolismo , Genômica
2.
Int J Appl Basic Med Res ; 13(1): 34-39, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37266533

RESUMO

Background: Consultation-liaison psychiatry (C-LP) is an interface between physical and psychological health where the psychiatrists become a part of the medical team for a holistic approach in the treatment of the patient. Aims: Our study aimed to see the pattern and utility of C-LP services among inpatient referrals to the department of psychiatry. Settings and Design: This observational descriptive study recorded inpatient referrals to the department of psychiatry of a tertiary care hospital for 2 months. Subjects and Methods: The Mini-International Neuropsychiatric Interview (M. I. N. I.) was administered for identifying the comorbid psychiatric diagnoses. Results: Most of the received inpatient referrals were for male patients (73.7%) in the age group of 30-60 years (58%). Overall, the referral rate was significantly higher from the emergency department and intensive care units (ICU) (50%), followed by specialty (medicine and surgery) wards (20%) and super specialty (cardiology, gastroenterology, and oncology) wards (16%). Altered sensorium and restlessness were the most common reasons for referral (42%), followed by alcohol/drug withdrawal (21.6%), somatic complaints (7.3%), sadness of mood, disturbed sleep, and deliberate self-harm (6% each). Substance use disorders, including alcohol and opioid (32%), delirium (25%), and depression (19%), were among the most common psychiatric diagnoses seen in the referred patients. Conclusions: The pattern observed indicates that most inpatient referrals for psychological evaluation are received for altered sensorium from emergency and ICU than wards. The utility of C-LP helps to understand the reciprocal interdependence between the medical illness and the psychiatric comorbidity.

3.
Antioxidants (Basel) ; 12(4)2023 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-37107228

RESUMO

Drought is recognized as a paramount threat to sustainable agricultural productivity. This threat has grown more severe in the age of global climate change. As a result, finding a long-term solution to increase plants' tolerance to drought stress has been a key research focus. Applications of chemicals such as zinc (Zn) may provide a simpler, less time-consuming, and effective technique for boosting the plant's resilience to drought. The present study gathers persuasive evidence on the potential roles of zinc sulphate (ZnSO4·7H2O; 1.0 g Kg-1 soil) and zinc oxide (ZnO; 1.0 g Kg-1 soil) in promoting tolerance of cotton plants exposed to drought at the first square stage, by exploring various physiological, morphological, and biochemical features. Soil supplementation of ZnSO4 or ZnO to cotton plants improved their shoot biomass, root dry weight, leaf area, photosynthetic performance, and water-use efficiency under drought stress. Zn application further reduced the drought-induced accumulations of H2O2 and malondialdehyde, and electrolyte leakage in stressed plants. Antioxidant assays revealed that Zn supplements, particularly ZnSO4, reduced reactive oxygen species (ROS) accumulation by increasing the activities of a range of ROS quenchers, such as catalase, ascorbate peroxidase, glutathione S-transferase, and guaiacol peroxidase, to protect the plants against ROS-induced oxidative damage during drought stress. Increased leaf relative water contents along with increased water-soluble protein contents may indicate the role of Zn in improving the plant's water status under water-deficient conditions. The results of the current study also suggested that, in general, ZnSO4 supplementation more effectively increased cotton drought tolerance than ZnO supplementation, thereby suggesting ZnSO4 as a potential chemical to curtail drought-induced detrimental effects in water-limited soil conditions.

4.
Lancet Psychiatry ; 6(1): 35-45, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30528676

RESUMO

BACKGROUND: Cannabis is one of the most widely used drugs worldwide. Cannabis use disorder is characterised by recurrent use of cannabis that causes significant clinical and functional impairment. There are no approved pharmacological treatments for cannabis use disorder. One approach is to potentiate endocannabinoid signalling by inhibiting fatty acid amide hydrolase (FAAH), the enzyme that degrades the endocannabinoid anandamide. We aimed to test the efficacy and safety of the FAAH-inhibitor PF-04457845 in reduction of cannabis withdrawal and cannabis use in men who were daily cannabis users. METHODS: We did a double-blind, placebo-controlled, parallel group phase 2a trial at one site in men aged 18-55 years with cannabis dependence according to DSM-IV criteria (equivalent to cannabis use disorder in DSM-5). After baseline assessments, participants were randomly assigned (2:1) to receive PF-04457845 (4 mg per day) or placebo using a fixed block size of six participants, stratified by severity of cannabis use and desire to quit. Participants were admitted to hospital for 5 days (maximum 8 days) to achieve abstinence and precipitate cannabis withdrawal, after which they were discharged to continue the remaining 3 weeks of treatment as outpatients. The primary endpoints were treatment-related differences in cannabis withdrawal symptoms during hospital admission, and week 4 (end of treatment) self-reported cannabis use and urine THC-COOH concentrations in the intention-to-treat population. The study is registered at ClinicalTrials.gov, number NCT01618656. FINDINGS: Between Sept 12, 2012, and Jan 18, 2016, 46 men were randomly assigned to PF-04457845 and 24 to placebo. Adherence to study medication was 88%, as confirmed by video-calling and pill count, and corroborated by corresponding drug and anandamide concentrations in blood. Relative to placebo, treatment with PF-04457845 was associated with reduced symptoms of cannabis withdrawal (first day of treatment mean symptom score 11·00 [95% CI 7·78-15·57] vs 6·04 [4·43-8·24]; difference 4·96 [0·71-9·21]; padj=0·048; second day of treatment 11·74 [8·28-16·66] vs 6·02 [4·28-8·47]; difference 5·73 [1·13-10·32]; padj=0·035) and related mood symptoms during the inpatient phase. Additionally, treatment with PF-04457845 was associated with lower self-reported cannabis use at 4 weeks (mean 1·27 joints per day [95% CI 0·82-1·97] vs 0·40 [0·25-0·62]; difference 0·88 [0·29-1·46]; p=0·0003) and lower urinary THC-COOH concentrations (mean 657·92 ng/mL [95% CI 381·60-1134·30] vs 265·55 [175·60-401·57]; difference 392·37 [17·55-767·18)]; p=0·009). Eight (17%) patients in the PF-04457845 group and four (17%) in the placebo group discontinued during the treatment period. During the 4-week treatment phase, 20 (43%) of 46 participants in the PF-04457845 group and 11 (46%) of 24 participants in the placebo group had an adverse event. There were no serious adverse events. INTERPRETATION: PF-04457845, a novel FAAH inhibitor, reduced cannabis withdrawal symptoms and cannabis use in men, and might represent an effective and safe approach for the treatment of cannabis use disorder. FUNDING: United States National Institute of Drug Abuse (NIDA).


Assuntos
Cannabis , Abuso de Maconha/tratamento farmacológico , Piridazinas/administração & dosagem , Síndrome de Abstinência a Substâncias , Ureia/análogos & derivados , Adolescente , Adulto , Amidoidrolases , Método Duplo-Cego , Humanos , Masculino , Fumar Maconha , Pessoa de Meia-Idade , Resultado do Tratamento , Ureia/administração & dosagem , Adulto Jovem
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