1.Advances of salt stress-responsive transcription factors in plants.
Lingyun PAN ; Jiaji MA ; Jianmin LI ; Bingbing YIN ; Chang FU
Chinese Journal of Biotechnology 2022;38(1):50-65
Salt stress may cause primary osmotic stress and ion toxicity, as well as secondary oxidative stress and nutritional stress in plants, which hampers the agricultural production. Salt stress-responsive transcription factors can mitigate the damage of salt stress to plants through regulating the expression of downstream target genes. Based on the soil salinization and its damage to plants, and the central regulatory role of transcription factors in the plant salt stress-responsive signal transduction network, this review summarized the salt stress-responsive signal transduction pathways that the transcription factors are involved, and the application of salt stress-responsive transcription factors to enhance the salt tolerance of plants. We also reviewed the transcription factors-regulated complex downstream gene network which is formed by forming homo- or heterodimers between transcription factors and by forming complexes with regulatory proteins. This paper provides a theoretical basis for understanding the role of salt stress-responsive transcription factors in the salt stress regulatory network, which may facilitate the molecular breeding for improved stress resistance.
Gene Expression Regulation, Plant
;
Osmotic Pressure
;
Plant Proteins/metabolism*
;
Plants, Genetically Modified
;
Salt Stress
;
Salt Tolerance
;
Stress, Physiological
;
Transcription Factors/metabolism*
2.Comparison of half-molar sodium lactate and mannitol to treat brain edema in severe traumatic brain injury: A systematic review.
Abdul Hafid BAJAMAL ; Tedy APRIAWAN ; I G M Aswin R RANUH ; Franco SERVADEI ; Muhammad FARIS ; Asra AL FAUZI
Chinese Journal of Traumatology 2021;24(6):344-349
PURPOSE:
Hypertonic fluids such as mannitol and half-molar sodium lactate are given to treat intracranial hypertension in patients with severe traumatic brain injury (TBI). In this study, sodium lactate was compared to mannitol in patients with TBI to investigate the efficacy in reducing intracranial pressure (ICP).
METHODS:
This study was a systematic review with literature research on articles published in any year in the databases of PubMed, ScienceDirect, Asian Journal of Neurosurgery, and Cochrane Central Register of Controlled Trials. The keywords were "half-molar sodium lactate", "mannitol", "cerebral edema or brain swelling", and "severe traumatic brain injury". The inclusion criteria were (1) studies published in English, (2) randomized control trials or retrospective/prospective studies on TBI patients, and (3) therapies including half-molar sodium lactate and mannitol and (4) sufficient data such as mean difference (MD) and risk ratio (RR). Data analysis was conducted using Review Manager 5.3.
RESULTS:
From 1499 studies, a total of 8 studies were eligible. Mannitol group reduced ICP of 0.65 times (MD 0.65; p = 0.64) and improved cerebral perfusion pressure of 0.61 times (MD 0.61; p = 0.88), better than the half-molar group of sodium lactate. But the half-molar group of sodium lactate maintained the mean arterial pressure level of 0.86 times, better than the mannitol group (MD 0.86; p = 0.09).
CONCLUSION
Half-molar sodium lactate is as effective as mannitol in reducing ICP in the early phase of brain injury, superior over mannitol in an extended period. It is able to prevent intracranial hypertension and give better brain tissue perfusion as well as more stable hemodynamics. Blood osmolarity is a concern as it increases serum sodium.
Brain Edema
;
Brain Injuries, Traumatic/drug therapy*
;
Diuretics, Osmotic/therapeutic use*
;
Humans
;
Intracranial Hypertension/etiology*
;
Intracranial Pressure
;
Mannitol/therapeutic use*
;
Prospective Studies
;
Retrospective Studies
;
Saline Solution, Hypertonic
;
Sodium Lactate
3.A Case of Adipsic Hypernatremia in a Patient with Panhypopituitarism Treated with Growth Hormone Replacement
Eui Hyon MHUN ; Jong Hyun LEE ; Dong Hwan LEE
Soonchunhyang Medical Science 2019;25(1):69-72
Adipsic hypernatremia is a rare disease where patients do not feel thirst even in the increased serum osmotic pressure and results in electrolyte imbalance, severely increased osmotic pressure and neurologic symptoms like nausea, vomiting, and seizures. We report a 12-year-old male patient who had underwent a trans-sphenoidal surgery for craniopharyngioma newly diagnosed with adipsic hypernatremia after having growth hormone replacement for growth hormone deficiency. The patient visited emergency room complaining of generalized weakness, tremor in both legs, and poor oral intake including water after starting growth hormone replacement therapy. Laboratory test revealed serum sodium 168 mmol/L and serum osmolality 329 mOsm/kg, despite the patient didn't feel any thirst at all. We treated him with scheduled water intake of 2.5 L a day with intranasal vasopressin. He admitted to Soonchunhyang University Gumi Hospital and Soonchunhyang University Seoul Hospital for 4 times during the following 8 months and serum sodium level and osmolality was controlled by scheduled water intake combined with intranasal vasopressin treatment. It is still unclear whether growth hormone replacement worked as a trigger of hypernatremia.
Child
;
Craniopharyngioma
;
Drinking
;
Emergency Service, Hospital
;
Growth Hormone
;
Gyeongsangbuk-do
;
Humans
;
Hypernatremia
;
Leg
;
Male
;
Nausea
;
Neurologic Manifestations
;
Osmolar Concentration
;
Osmotic Pressure
;
Rare Diseases
;
Seizures
;
Seoul
;
Sodium
;
Thirst
;
Tremor
;
Vasopressins
;
Vomiting
;
Water
4.Central Pontine Myelinolysis Induced by Alcohol Withdrawal: A Case Report.
Jae Ho KIM ; Sae Hyun KIM ; Ho Joong JEONG ; Young Joo SIM ; Dong Kyu KIM ; Ghi Chan KIM
Annals of Rehabilitation Medicine 2017;41(1):148-152
Central pontine myelinolysis (CPM) is a demyelinating disorder characterized by the loss of myelin in the center of the basis pons, and is mainly caused by the rapid correction of hyponatremia. We report the case of a young woman who presented with gait disturbance and alcohol withdrawal, and who was eventually diagnosed with CPM. Generally, the cause and pathogenesis of CPM in chronic alcoholics remain unclear. In this cases, the CPM may be unrelated to hyponatremia or its correction. However, it is possible that the osmotic pressure changes due to refeeding syndrome after alcohol withdrawal was the likely cause in this case. This case illustrates the need for avoiding hasty, and possibly incomplete diagnoses, and performing more intensive test procedures to ensure a correct diagnosis.
Alcoholics
;
Demyelinating Diseases
;
Diagnosis
;
Female
;
Gait
;
Humans
;
Hyponatremia
;
Myelin Sheath
;
Myelinolysis, Central Pontine*
;
Osmotic Pressure
;
Pons
;
Refeeding Syndrome
5.Moringa oleifera Prolongs Lifespan via DAF-16/FOXO Transcriptional Factor in Caenorhabditis elegans.
Jun Sang IM ; Ha Na LEE ; Jong Woo OH ; Young Jin YOON ; Jin Suck PARK ; Ji Won PARK ; Jung Hoon KIM ; Yong Sung KIM ; Dong Seok CHA ; Hoon JEON
Natural Product Sciences 2016;22(3):201-208
Here in this study, we investigated the lifespan-extending effect and underlying mechanism of methanolic extract of Moringa olelifa leaves (MML) using Caenorhabditis elegans (C. elegans) model system. To define the longevity properties of MML we conducted lifespan assay and MML showed significant increase in lifespan under normal culture condition. In addition, MML elevated stress tolerance of C. elegans to endure against thermal, oxidative and osmotic stress conditions. Our data also revealed that increased activities of antioxidant enzymes and expressions of stress resistance proteins were attributed to MML-mediated enhanced stress resistance. We further investigated the involvement of MML on the aging-related factors such as growth, food intake, fertility, and motility. Interestingly, MML significantly reduced growth and egg-laying, suggesting these factors were closely linked with MML-mediated longevity. We also observed the movement of aged worms to estimate the effects of MML on the health span. Herein, MML efficiently elevated motility of aged worms, indicating MML may affect health span as well as lifespan. Our genetic analysis using knockout mutants showed that lifespan-extension activity of MML was interconnected with several genes such as skn-1, sir-2.1, daf-2, age-1 and daf-16. Based on these results, we could conclude that MML prolongs the lifespan of worms via activation of SKN-1 and SIR-2.1 and inhibition of insulin/IGF pathway, followed by DAF-16 activation.
Caenorhabditis elegans*
;
Caenorhabditis*
;
Eating
;
Fertility
;
Longevity
;
Methanol
;
Moringa oleifera*
;
Moringa*
;
Osmotic Pressure
6.Cryobiological Characteristics of L-proline in Mammalian Oocyte Cryopreservation.
Lu ZHANG ; Xu XUE ; Jie YAN ; Li-Ying YAN ; Xiao-Hu JIN ; Xiao-Hui ZHU ; Zhi-Zhu HE ; Jing LIU ; Rong LI ; Jie QIAO ;
Chinese Medical Journal 2016;129(16):1963-1968
BACKGROUNDL-proline is a natural, nontoxic cryoprotectant that helps cells and tissues to tolerate freezing in a variety of plants and animals. The use of L-proline in mammalian oocyte cryopreservation is rare. In this study, we explored the cryobiological characteristics of L-proline and evaluated its protective effect in mouse oocyte cryopreservation.
METHODSThe freezing property of L-proline was detected by Raman spectroscopy and osmometer. Mature oocytes obtained from 8-week-old B6D2F1 mice were vitrified in a solution consisting various concentration of L-proline with a reduced proportion of dimethyl sulfoxide (DMSO) and ethylene glycol (EG), comparing with the control group (15% DMSO and 15% EG without L-proline). The survival rate, 5-methylcytosine (5-mC) expression, fertilization rate, two-cell rate, and blastocyst rate in vitro were assessed by immunofluorescence and in vitro fertilization. Data were analyzed by Chi-square test.
RESULTSL-proline can penetrate the oocyte membrane within 1 min. The osmotic pressure of 2.00 mol/L L-proline mixture is similar to that of the control group. The survival rate of the postthawed oocyte in 2.00 mol/L L-proline combining 7.5% DMSO and 10% EG is significantly higher than that of the control group. There is no difference of 5-mC expression between the L-proline combination groups and control. The fertilization rate, two-cell rate, and blastocyst rate in vitro from oocyte vitrified in 2.00 mol/L L-proline combining 7.5% DMSO and 10% EG solution are similar to that of control.
CONCLUSIONSIt indicated that an appropriate concentration of L-proline can improve the cryopreservation efficiency of mouse oocytes with low concentrations of DMSO and EG, which may be applicable to human oocyte vitrification.
Animals ; Cryopreservation ; methods ; Cryoprotective Agents ; pharmacology ; Female ; Fertilization in Vitro ; Hydrogen-Ion Concentration ; Male ; Mice ; Oocytes ; drug effects ; Osmotic Pressure ; Proline ; pharmacology ; Spectrum Analysis, Raman ; Vitrification
7.Intracerebral Hemorrhagic Infarction after Cranioplasty in a Patient with Sinking Skin Flap Syndrome.
Korean Journal of Neurotrauma 2016;12(2):152-155
The sinking skin flap syndrome (SSFS) is a rare complication after a large craniectomy. Hemorrhage infarction after a cranioplasty is a very rare complication with only 4 cases to date. We report a case of the patient who underwent an autologous cranioplasty to treat SSFS that developed intracerebral hemorrhage infarction. A 20-year-old male was admitted to our emergency department with stuporous mentality. Emergent decompressive craniectomy (DC) have done. He had suffered from SSFS and fever of unknown origin (FUO) since DC. After 7 months of craniectomy, cranioplasty was done. After 1 day of surgery, acute infarction with hemorrhagic transformation involved left cerebral hemisphere. We controlled increased intracranial pressure by using osmotic diuretics, steroid and antiepileptic drugs. After 14 day of surgery, he improved neurological symptoms and he had not any more hyperthermia. Among several complication of large cranioplasty only 4 cases of intracerebral hemorrhagic infarction due to reperfusion injury has been reported. In this case, unstable autoregulation system made brain hypoxic damage and then reperfusion and recanalization of cerebral vessels resulted in intracerebral hemorrhagic infarction. 7 month long FUO was resolved by cranioplasty.
Anticonvulsants
;
Brain
;
Cerebral Hemorrhage
;
Cerebrum
;
Decompressive Craniectomy
;
Diuretics, Osmotic
;
Emergency Service, Hospital
;
Fever
;
Fever of Unknown Origin
;
Hemorrhage
;
Homeostasis
;
Humans
;
Infarction*
;
Intracranial Pressure
;
Male
;
Reperfusion
;
Reperfusion Injury
;
Skin*
;
Stupor
;
Young Adult
8.Regulation of TAZ in cancer.
Protein & Cell 2016;7(8):548-561
TAZ, a transcriptional coactivator with PDZ-binding motif, is encoded by WWTR1 gene (WW domain containing transcription regulator 1). TAZ is tightly regulated in the hippo pathway-dependent and -independent manner in response to a wide range of extracellular and intrinsic signals, including cell density, cell polarity, F-actin related mechanical stress, ligands of G protein-coupled receptors (GPCRs), cellular energy status, hypoxia and osmotic stress. Besides its role in normal tissue development, TAZ plays critical roles in cell proliferation, differentiation, apoptosis, migration, invasion, epithelial-mesenchymal transition (EMT), and stemness in multiple human cancers. We discuss here the regulators and regulation of TAZ. We also highlight the tumorigenic roles of TAZ and its potential therapeutic impact in human cancers.
Animals
;
Apoptosis
;
Cell Differentiation
;
Cell Proliferation
;
Energy Metabolism
;
genetics
;
Epithelial-Mesenchymal Transition
;
Humans
;
Hypoxia
;
genetics
;
metabolism
;
pathology
;
Neoplasm Invasiveness
;
Neoplasm Proteins
;
genetics
;
metabolism
;
Neoplasms
;
genetics
;
metabolism
;
pathology
;
Osmotic Pressure
;
Stress, Mechanical
;
Transcription Factors
;
genetics
;
metabolism
9.Unexpected Severe Cerebral Edema after Cranioplasty : Case Report and Literature Review.
Gwang Soo LEE ; Sukh Que PARK ; Rasun KIM ; Sung Jin CHO
Journal of Korean Neurosurgical Society 2015;58(1):76-78
This report details a case of unexpected, severe post-operative cerebral edema following cranioplasty. We discuss the possible pathological mechanisms of this complication. A 50-year-old female was admitted to our department with sudden onset of stuporous consciousness. A brain computed tomography (CT) revealed a subarachnoid hemorrhage with intracranial hemorrhage and subdural hematoma. Emergency decompressive craniectomy and aneurysmal neck clipping were performed. Following recovery, the decision was made to proceed with an autologous cranioplasty. The cranioplasty procedure was free of complications. An epidural drain was placed and connected to a suction system during skin closure to avoid epidural blood accumulation. However, following the procedure, the patient had a seizure in the recovery room. An emergency brain CT scan revealed widespread cerebral edema, and the catheter drain was clamped. The increased intracranial pressure and cerebral edema were controlled with osmotic diuretics, corticosteroids, and antiepileptic drugs. The edema slowly subsided, but new low-density areas were noted in the brain on follow-up CT 1 week later. We speculated that placing the epidural drain on active suction may have caused an acute decrease in intracranial pressure and subsequent rapid expansion of the brain, which impaired autoregulation and led to reperfusion injury.
Adrenal Cortex Hormones
;
Aneurysm
;
Anticonvulsants
;
Brain
;
Brain Edema*
;
Catheters
;
Consciousness
;
Decompressive Craniectomy
;
Diuretics, Osmotic
;
Edema
;
Emergencies
;
Female
;
Follow-Up Studies
;
Hematoma, Subdural
;
Homeostasis
;
Humans
;
Intracranial Hemorrhages
;
Intracranial Pressure
;
Middle Aged
;
Neck
;
Recovery Room
;
Reperfusion Injury
;
Seizures
;
Skin
;
Stupor
;
Subarachnoid Hemorrhage
;
Suction
;
Tomography, X-Ray Computed
10.Eosin Y-water test for sperm function examination.
Shu-wei ZHA ; Nian-qing LÜ ; Hao-qin XU
National Journal of Andrology 2015;21(6):566-569
Based on the principles of the in vitro staining technique, hypotonic swelling test, and water test, the Eosin Y-water test method was developed to simultaneously detect the integrity of the sperm head and tail and sperm membrane structure and function. As a widely used method in clinical laboratories in China, the Eosin Y-water test is methodologically characterized by three advantages. Firstly, both the sperm head and tail can be detected at the same time, which allows easy and comprehensive assessment of membrane damage in different parts of sperm. Secondly, distilled water is used instead of the usual formula solution to simplify and standardize the test by eliminating any potential effects on the water molecules through the sperm membrane due to different osmotic pressure or different sugar proportions and electrolyte solutions. Thirdly, the test takes less time and thus can be repeated before and after treatment. This article focuses on the fundamental principles and modification of the Eosin Y-water test and its application in sperm function examination and routine semen analysis for male infertility, assessment of the quality of sperm retrieved by testicular fine needle aspiration, semen cryopreservation program development, and evaluation of sperm membrane integrity after microwave radiation.
Cell Membrane
;
China
;
Cryopreservation
;
Eosine Yellowish-(YS)
;
Fluorescent Dyes
;
Humans
;
Infertility, Male
;
diagnosis
;
Male
;
Osmotic Pressure
;
Semen Analysis
;
methods
;
Sperm Head
;
Sperm Motility
;
Sperm Tail
;
Spermatozoa
;
Staining and Labeling
;
Water

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